Indoor air - Part 23: Performance test for evaluating the reduction of formaldehyde and other carbonyl compounds concentrations by sorptive building materials

This document specifies a general laboratory test method for evaluating the reduction of formaldehyde
and other carbonyl compounds (aldehydes and ketones) concentrations by sorptive building materials.
This method applies to boards, wallpapers, carpets, paint products, and other building materials. The
sorption of those target compounds, i.e. formaldehyde and other carbonyl compounds, can be brought
about by adsorption, absorption and chemisorption.
The method specified in this document employs formaldehyde and other carbonyl compound spiked
supply air to determine the performance of building materials in reducing formaldehyde and other
carbonyl compounds concentrations.
This document is based on the test chamber method specified in ISO 16000-9. Sampling, transport and
storage of materials to be tested and preparation of test specimens are specified in ISO 16000-11. Air
sampling and analytical methods for the determination of formaldehyde and other carbonyl compounds
are specified in ISO 16000-3, which is part of the complete procedure.
This document applies to the determination of formaldehyde and other carbonyl compounds,
such as formaldehyde, acetaldehyde, acetone, benzaldehyde, butyraldehyde, valeraldehyde,
2,5-dimethylbenzaldehyde, capronaldehyde, isovaleraldehyde, propionaldehyde, o-tolualdehyde,
m-tolualdehyde, p-tolualdehyde.

Air intérieur - Partie 23: Essai de performance pour l'évaluation de la réduction des concentrations en formaldéhyde par des matériaux de construction sorptifs

Le pr�sent document sp�cifie une m�thode g�n�rale d'essai de laboratoire en vue de l'�valuation de la r�duction des concentrations en formald�hyde et autres compos�s carbonyl�s (ald�hydes et c�tones) gr�ce � l'utilisation de mat�riaux de construction sorptifs. Cette m�thode s'applique aux planches, papiers peints, tapis, produits de peinture et autres mat�riaux de construction. La sorption des compos�s cibles, � savoir le formald�hyde et autres compos�s carbonyl�s, peut �tre r�alis�e par adsorption, absorption et chimisorption.
La m�thode sp�cifi�e dans le pr�sent document emploie une alimentation en air dop� au formald�hyde et autres compos�s carbonyl�s pour d�terminer l'aptitude du produit de construction � r�duire les concentrations en formald�hyde et autres compos�s carbonyl�s.
Le pr�sent document s'appuie sur la m�thode de la chambre d'essai sp�cifi�e dans l'ISO 16000‑9. L'�chantillonnage, le transport et le stockage des mat�riaux � soumettre � essai, ainsi que la pr�paration des �prouvettes, sont sp�cifi�s dans l'ISO 16000‑11. Le pr�l�vement de l'air et les m�thodes d'analyse en vue de la d�termination du formald�hyde et d'autres compos�s carbonyl�s sont d�crits dans l'ISO 16000‑3, qui fait partie de la proc�dure compl�te.
Le pr�sent document s'applique � la d�termination du formald�hyde et d'autres compos�s carbonyl�s, tels que le formald�hyde, l'ac�tald�hyde, l'ac�tone, le benzald�hyde, le butyrald�hyde, le val�rald�hyde, le 2,5-dim�thylbenzald�hyde, le capronald�hyde, l'isoval�rald�hyde, le propionald�hyde, l'o-toluald�hyde, le m-toluald�hyde, le p-toluald�hyde.

Notranji zrak - 23. del: Preskus lastnosti vpojnih gradbenih materialov, ki znižujejo koncentracije formaldehida in drugih karbonilnih spojin

Ta dokument določa splošno laboratorijsko preskusno metodo za vrednotenje zmanjšanja koncentracij formaldehida in drugih karbonilnih spojin (aldehidov in ketonov) z vpojnimi gradbenimi materiali. Ta metoda se uporablja za plošče, tapete, preproge, barve in druge gradbene materiale. Vpijanje teh ciljnih spojin, na primer formaldehida in drugih karbonilnih spojin, se lahko doseže z adsorpcijo, absorpcijo ter kemisorpcijo.
Za metodo, opisano v tem dokumentu, se za določanje učinka gradbenih materialov za zmanjševanje koncentracij formaldehida in drugih karbonilnih spojin uporablja zrak, ki vsebuje nizko koncentracijo formaldehida in drugih karbonilnih spojin.
Ta dokument temelji na metodi preskusne komore, podane v standardu ISO 16000-9. Vzorčenje, prevoz in skladiščenje materialov, ki se jih bo preskušalo, ter priprava preskušancev so navedeni v standardu ISO 16000-11. Vzorčenje zraka in analizne metode za določevanje formaldehida in drugih karbonilnih spojin
so navedeni v standardu ISO 16000-3, ki je del celotnega postopka. Ta dokument se uporablja za določevanje formaldehida in drugih karbonilnih spojin, kot so formaldehid, acetaldehid, aceton, benzaldehid, butiraldehid, valeraldehid, 2,5-dimetilbenzaldehid, kapronaldehid, izovaleraldehid, propionaldehid, o-tolualdehid, m-tolualdehid, p-tolualdehid.

General Information

Status
Published
Public Enquiry End Date
09-Oct-2018
Publication Date
18-Aug-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Jun-2019
Due Date
17-Aug-2019
Completion Date
19-Aug-2019

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INTERNATIONAL ISO
STANDARD 16000-23
Second edition
2018-12
Indoor air —
Part 23:
Performance test for evaluating the
reduction of formaldehyde and other
carbonyl compounds concentrations
by sorptive building materials
Air intérieur —
Partie 23: Essai de performance pour l'évaluation de la réduction des
concentrations en formaldéhyde et autres composés carbonylés par
des matériaux de construction sorptifs
Reference number
ISO 16000-23:2018(E)
ISO 2018
---------------------- Page: 1 ----------------------
ISO 16000-23:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 16000-23:2018(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 4

5 Principle ........................................................................................................................................................................................................................ 4

6 Apparatus and materials.............................................................................................................................................................................. 5

7 Test conditions ....................................................................................................................................................................................................... 6

7.1 General ........................................................................................................................................................................................................... 6

7.2 Test conditions to determine concentration reduction performance ..................................................... 6

7.2.1 Temperature and relative humidity ................................................................................................................ 6

7.2.2 Supply air quality and background concentration ............................................................................. 6

7.2.3 Mass transfer coefficient ........................................................................................................................................... 7

7.2.4 Air change rate ...................................................................... ............................................................................................. 7

7.2.5 Supply air concentration ........................................................................................................................................... 7

7.3 Factors affecting the concentration reduction performance .......................................................................... 7

7.3.1 General...................................................................................................................................................................................... 7

7.3.2 Temperature and humidity ..................................................................................................................................... 7

7.3.3 Concentration of target compound(s) in supply air .......................................................................... 7

7.3.4 Interfering gases .............................................................................................................................................................. 8

8 Verification of test conditions ................................................................................................................................................................. 8

8.1 Monitoring of test conditions ..................................................................................................................................................... 8

8.2 Airtightness of test chamber ....................................................................................................................................................... 8

8.3 Air change rate in test chamber ............................................................................................................................................... 8

8.4 Efficiency of the internal test chamber air mixing ................................................................................................... 8

8.5 Recovery ....................................................................................................................................................................................................... 8

9 Preparation of test chamber .................................................................................................................................................................... 9

10 Preparation of test specimens ................................................................................................................................................................ 9

11 Test method ............................................................................................................................................................................................................... 9

11.1 Background concentration and spiked supply air .................................................................................................... 9

11.2 Placing the test specimen in the test chamber ............................................................................................................ 9

11.3 Time intervals for measurement of test chamber concentration ............................................................... 9

11.3.1 Test for target compound concentration reduction .......................................................................... 9

11.3.2 Test for long-term reduction performance ............................................................................................10

11.3.3 Factors affecting the reduction performance .......................................................................................10

11.4 Air sampling ...........................................................................................................................................................................................10

12 Determination of target compound(s) .......................................................................................................................................10

13 Expression of results .....................................................................................................................................................................................10

13.1 Calculation of area-specific reduction rate ..................................................................................................................10

13.2 Calculation of equivalent ventilation rate per area ..............................................................................................11

13.3 Calculation of total mass per area of sorption and saturation mass per area ...............................11

14 Test report ................................................................................................................................................................................................................11

Annex A (normative) Sample tube test for long-term reduction performance ....................................................13

Annex B (normative) System for quality assurance and quality control .....................................................................17

Annex C (informative) Example measurements of construction materials ..............................................................19

© ISO 2018 – All rights reserved iii
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ISO 16000-23:2018(E)

Annex D (informative) Example procedure for long-term reduction performance .........................................24

Bibliography .............................................................................................................................................................................................................................27

iv © ISO 2018 – All rights reserved
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ISO 16000-23:2018(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 6,

Indoor air.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.

This second edition cancels and replaces the first edition (ISO 16000-23:2009), which has been

technically revised. The main changes compared to the previous edition are as follows.

— The target chemical compounds subject to this document have been changed from formaldehyde

only to formaldehyde and other carbonyl compounds.
A list of all parts in the ISO 16000 series can be found on the ISO website.
© ISO 2018 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO 16000-23:2018(E)
Introduction

Sorptive building materials have been marketed in the form of sheet and board products for removing

airborne pollutants via physical sorption or chemical reaction.

Harmonized test methods for evaluating sorptive effects are important for quantitative performance

assessment of sorptive building materials that are used for reducing levels of indoor air contaminants.

This document specifies procedures for evaluating the performance of sorptive building materials in

reducing indoor air formaldehyde and other carbonyl compounds concentrations over time.

The performance of sorptive building materials is evaluated by measuring the area-specific reduction

rate and the saturation mass per area. The former directly indicates material performance with respect

to formaldehyde and other carbonyl compounds concentration reduction at a point in time; the latter

relates to the ability of a product to maintain such a performance. This is affected by a number of factors

and the performance test in conjunction with the standardized sampling, storage of samples and

preparation of test specimens has objectives to provide manufacturers, builders, and end users with

comparative performance data of sorptive building materials useful for the evaluation of the impact on

the indoor air quality, and to promote the development of improved products. Specific test conditions

are therefore defined in this document.

This document can be applied to most sorptive building materials used indoors and to formaldehyde and

other carbonyl compounds used as an indoor air contaminant. This method does not apply to materials

capable of decomposing target compound(s) by catalytic reaction in the presence of ultraviolet and

visible rays.
This document is based on the test chamber method as specified in ISO 16000-9.
vi © ISO 2018 – All rights reserved
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INTERNATIONAL STANDARD ISO 16000-23:2018(E)
Indoor air —
Part 23:
Performance test for evaluating the reduction of
formaldehyde and other carbonyl compounds
concentrations by sorptive building materials
1 Scope

This document specifies a general laboratory test method for evaluating the reduction of formaldehyde

and other carbonyl compounds (aldehydes and ketones) concentrations by sorptive building materials.

This method applies to boards, wallpapers, carpets, paint products, and other building materials. The

sorption of those target compounds, i.e. formaldehyde and other carbonyl compounds, can be brought

about by adsorption, absorption and chemisorption.

The method specified in this document employs formaldehyde and other carbonyl compound spiked

supply air to determine the performance of building materials in reducing formaldehyde and other

carbonyl compounds concentrations.

This document is based on the test chamber method specified in ISO 16000-9. Sampling, transport and

storage of materials to be tested and preparation of test specimens are specified in ISO 16000-11. Air

sampling and analytical methods for the determination of formaldehyde and other carbonyl compounds

are specified in ISO 16000-3, which is part of the complete procedure.

This document applies to the determination of formaldehyde and other carbonyl compounds,

such as formaldehyde, acetaldehyde, acetone, benzaldehyde, butyraldehyde, valeraldehyde,

2,5-dimethylbenzaldehyde, capronaldehyde, isovaleraldehyde, propionaldehyde, o-tolualdehyde,

m-tolualdehyde, p-tolualdehyde.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 16000-3, Indoor air — Part 3: Determination of formaldehyde and other carbonyl compounds in indoor

air and test chamber air — Active sampling method

ISO 16000-6, Indoor air — Part 6: Determination of volatile organic compounds in indoor and test chamber

air by active sampling on Tenax TA sorbent, thermal desorption and gas chromatography using MS or MS-FID

ISO 16000-9, Indoor air — Part 9: Determination of the emission of volatile organic compounds from

building products and furnishing — Emission test chamber method

ISO 16000-11, Indoor air — Part 11: Determination of the emission of volatile organic compounds from

building products and furnishing — Sampling, storage of samples and preparation of test specimens

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
© ISO 2018 – All rights reserved 1
---------------------- Page: 7 ----------------------
ISO 16000-23:2018(E)

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at https: //www .electropedia .org/
3.1
area-specific reduction rate
ads

mass of target compound(s) (3.14) sorbed per time unit per area at the specified elapsed time (3.4) from

the test start
3.2
breakthrough time

time at which the target compound (3.14) concentration in the air eluting from the sample tube reaches

0,5 % of the concentration in the supplied air
3.3
degradation coefficient

ratio of the mass of target compound(s) (3.14) removed by the initial performance divided by the mass

of the same compound(s) lost by deterioration
3.4
elapsed time
time from the start of test to the start of air sampling
Note 1 to entry: Elapsed time is expressed in hours or days.
3.5
equivalent ventilation rate per area
V, eq

increased clean air ventilation rate giving the same reduction in target compound (3.14) concentration

as the building material
3.6
guideline concentration

corresponding threshold indoor air concentration for target compound(s) (3.14) as specified by the

WHO or an appropriate national standards body
3.7
half-lifetime

time elapsed from the start of the test until the target compound (3.14) concentration reduction

performance decreases to one half of the initial concentration reduction performance

3.8
lifetime

time period over which the product continues to reduce target compound (3.14) concentrations

Note 1 to entry: The lifetime is given in days or years.

Note 2 to entry: The lifetime is estimated from the area-specific reduction rate (3.1) and sorption capacity

measured by the sample tube test.
3.9
mass transfer coefficient

coefficient arising from the concentration difference between the test specimen and ambient air over

its surface

Note 1 to entry: Mass transfer coefficient is expressed in metres per hour (m/h).

2 © ISO 2018 – All rights reserved
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ISO 16000-23:2018(E)
3.10
recovery

measured mass of target compound(s) (3.14) in the air leaving the test chamber with no sample present

conditioned over a given time period divided by the mass of target compound(s) added to the test

chamber in the same time period

Note 1 to entry: The recovery is expressed as a percentage and provides information about the performance of

the entire method.
3.11
saturation mass per area

theoretical maximum mass of target compound(s) (3.14) that could be removed per area of the sorptive

material

Note 1 to entry: Saturation mass per area is expressed in micrograms per area. It corresponds to the total mass

per area of sorption at the half-lifetime (3.7), or is extrapolated from the sorption capacity (3.12) derived from the

test referenced in Annex A.
3.12
sorption capacity

total mass of target compound(s) (3.14) sorbed at breakthrough time (3.2) per mass of sorbent

Note 1 to entry: Sorption capacity is expressed in micrograms per gram and is measured using the test specified

in Annex A.
3.13
supply air concentration

mass concentration of target compound(s) (3.14) in the air for supply to the test chamber

3.14
target compound
formaldehyde or other carbonyl compound in indoor air
3.15
test chamber concentration

concentration of target compound(s) (3.14) measured at the outlet of a test chamber, derived by dividing

the mass of the target compound(s) sampled at the outlet of the chamber by the volume of sampled air

3.16
total mass per area of sorption

integral over time of area-specific reduction rate (3.1) from the start of the test to the specified elapsed

time (3.4) measured with the test chamber

Note 1 to entry: Total mass per area of sorption is expressed in micrograms per area.

3.17
air sampling period

period of time during which air is sampled from the outlet of the test chamber using sampling tubes or

other devices
© ISO 2018 – All rights reserved 3
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ISO 16000-23:2018(E)
4 Symbols
Symbol Meaning Unit
A surface area of test specimen square metres
q Area-specific reduction rate micrograms per square metre per hour
ads
q air flow rate per area cubic metres per square metre per hour
V, a
q equivalent ventilation rate cubic metres per square metre per hour
V, eq
k mass transfer coefficient determined using water vapour metres per hour
L product loading factor square metres per cubic metre
m actual mass of test specimen in sample tube grams
n air change rate changes per hour
q air flow rate of test chamber cubic metres per hour
q air flow rate of sample tube litres per minute
t breakthrough time minutes
t elapsed time hours or days
t lifetime of the pollutant-removing performance hours, days or years
V air volume of test chamber cubic metres
w sorption capacity measured by sample tube micrograms per gram
ρ mass of sorptive material per area (surface density) grams per square metre
ρ saturation mass per area micrograms per square metre

ρ total mass per area of sorption measured by chamber test micrograms per square metre

ρ concentration of target compound(s) at test chamber inlet micrograms per cubic metre

in, t
at elapsed time t
ρ test chamber concentration at elapsed time t micrograms per cubic metre
out, t
ρ supply air concentration in sample tube micrograms per cubic metre
5 Principle

The performance of a building material in reducing the concentration of target compound(s),

i.e. formaldehyde and other carbonyl compounds, from the indoor air is evaluated by monitoring the

reduction of the concentration of these substances in the air of a test chamber containing a specimen

of the test material. The test assesses both the initial performance of the material and how long that

performance is maintained.

In this test method, target compound spiked air is supplied into the test chamber. The spiked air should

be prepared at approximately the guideline concentration level for the target compound(s) in indoor

air. Reference to the WHO or an appropriate national standards body can be made if this is clearly

highlighted in the test report.

Performance is determined by monitoring the difference in the concentration of target compound(s)

at the inlet and outlet of the test chamber. Testing should be carried out for the half-lifetime, i.e. until

the concentration reduction performance of target compound(s) drops to one half of the performance

recorded at the start of the test under constant ventilation conditions. With this test, the area-specific

reduction rate, ρ , and total mass per area of sorption, ρ , at the half-lifetime are determined. The

ads Ac

value measured for ρ at the half-lifetime is defined as the saturation mass per area, ρ .

Ac Aa

If a test material continues to reduce target compound concentrations for longer than 28 days, the

alternative methods specified in Annex A for determining ρ may be applied.

The performance of sorptive building materials is mainly determined by the target compound

concentration, the mass transfer coefficient of target compound(s) to the surface, and the sorption

characteristics of the building materials themselves (adsorption isotherm, diffusion resistance, and so

4 © ISO 2018 – All rights reserved
---------------------- Page: 10 ----------------------
ISO 16000-23:2018(E)

on). Therefore, the performance test method shall specify both the concentration of target compound(s)

and the mass transfer coefficient associated with the sorptive building material.

A re-emission test should be conducted following the test for evaluating the concentration reduction

performance, as described in 11.3.1.

NOTE The long-term formaldehyde target compound reduction performance is represented by the

saturation mass per area, ρ , and, if necessary, the lifetime of the pollutant-removing performance, t , as the

Aa lt
subsidiary index.
6 Apparatus and materials
The usual laboratory apparatus and, in particular, the following.

6.1 Test chamber, complying with the relevant specifications and requirements of ISO 16000-9

(see Figure 1). No air shall be allowed to circulate from the outlet back to the inlet.

Key

1 supply air spiked with target compound(s) (6.3) 5 device to circulate air and control air velocity

2 air sampling device (6.6) 6 temperature/humidity monitoring apparatus (6.4)
3 test specimen 7 test chamber outlet
4 test chamber (6.1) 8 air sampling device (6.6)
Figure 1 — Outline of the test chamber system

6.2 Air purifier or cylinder of clean air, to ensure the supply air is as clean as possible before being

spiked with target compound(s), i.e. it shall not contain any contaminants at levels greater than the

chamber background requirements.

6.3 Supply air spiked with target compound(s), created by applying a standard gas (whose target

compound concentration is known) to the test chamber. Alternatively, use a stable source to generate

air spiked with target compound(s) that can be supplied to the test chamber. The stability of the spiked

target compound concentration shall be monitored.
6.4 Temperature and humidity monitoring apparatus.

Temperature shall be maintained either by installing a test chamber in a place maintained at the

required temperature, or by maintaining the required temperature in the chamber. Relative humidity

shall be maintained at the required humidity of the supply air. Temperature and humidity controls of

the supply air are described in ISO 16000-9.
© ISO 2018 – All rights reserved 5
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ISO 16000-23:2018(E)

6.5 Air flow meter, installed at the inlet or the outlet of the test chamber to measure the air flow rate

through the chamber.
6.6 Air sampling devices.

Use the inlet and outlet air of the test chamber for sampling. When a separate sampling port is used,

sample directly from the inlet or outlet of the chamber.

If a duct or tube is used, it shall be as short as possible and kept at the same air temperature as that of

the test chamber. Such a duct or tube shall be made of a material with a very low sorption capacity, e.g.

polytetrafluoroethylene.

The sum of sampling air flow rates shall be smaller than the air flow rate into the chamber. Sampling

devices shall comply with the specifications of ISO 16000-3. When the air is sampled from the inlet,

ensure the supply air flow rate remains constant.

A multiport sampling manifold may be used to provide flexibility for duplicate air sampling. A mixing

chamber between the test chamber and the manifold or between the air inlet and the test chamber can

be included to permit addition and mixing of internal standard gases with the test chamber air stream.

The exhaust from the test chamber should be ducted into a fume hood, ensuring that target compound

spiked air and any chemicals emitted from the test material are isolated from the laboratory

environment.
6.7 High performance liquid chromatograph (HPLC), as specified in ISO 16000-3.
7 Test conditions
7.1 General

The test conditions shall comply with 7.2 and 7.3. This test shall be conducted under atmospheric

pressure conditions.
An example is given in Annex C.
7.2 Test conditions to determine concentration reduction performance
7.2.1 Temperature and relative humidity

The temperature in the test chamber should be set to 23 °C ± 1 °C, and the relative humidity should be

50 % ± 5 % during the test.

For building materials with applications under other climatic conditions, alternative temperatures

and air humidity conditions may be used, preferably as specified in ISO 554. State the conditions in the

test report.

Initial variations can be observed in the test chamber climate after opening the test chamber door and

loading a test specimen. These variations should be recorded.

NOTE Temperature and relative humidity can affect area-specific reduction rate and re-desorption from the

test material.
7.2.2 Supply air quality and background concentration

The background concentration of the supply air for the test chamber and the air prior to spiking

with target compound(s) shall be low enough not to interfere with the test. The total volatile

...

SLOVENSKI STANDARD
SIST ISO 16000-23:2019
01-september-2019
Nadomešča:
SIST ISO 16000-23:2013

Notranji zrak - 23. del: Preskus lastnosti vpojnih gradbenih materialov, ki znižujejo

koncentracije formaldehida in drugih karbonilnih spojin

Indoor air - Part 23: Performance test for evaluating the reduction of formaldehyde and

other carbonyl compounds concentrations by sorptive building materials

Air intérieur - Partie 23: Essai de performance pour l'évaluation de la réduction des

concentrations en formaldéhyde par des matériaux de construction sorptifs
Ta slovenski standard je istoveten z: ISO 16000-23:2018
ICS:
13.040.20 Kakovost okoljskega zraka Ambient atmospheres
91.100.01 Gradbeni materiali na Construction materials in
splošno general
SIST ISO 16000-23:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ISO 16000-23:2019
---------------------- Page: 2 ----------------------
SIST ISO 16000-23:2019
INTERNATIONAL ISO
STANDARD 16000-23
Second edition
2018-12
Indoor air —
Part 23:
Performance test for evaluating the
reduction of formaldehyde and other
carbonyl compounds concentrations
by sorptive building materials
Air intérieur —
Partie 23: Essai de performance pour l'évaluation de la réduction des
concentrations en formaldéhyde et autres composés carbonylés par
des matériaux de construction sorptifs
Reference number
ISO 16000-23:2018(E)
ISO 2018
---------------------- Page: 3 ----------------------
SIST ISO 16000-23:2019
ISO 16000-23:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018

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SIST ISO 16000-23:2019
ISO 16000-23:2018(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 4

5 Principle ........................................................................................................................................................................................................................ 4

6 Apparatus and materials.............................................................................................................................................................................. 5

7 Test conditions ....................................................................................................................................................................................................... 6

7.1 General ........................................................................................................................................................................................................... 6

7.2 Test conditions to determine concentration reduction performance ..................................................... 6

7.2.1 Temperature and relative humidity ................................................................................................................ 6

7.2.2 Supply air quality and background concentration ............................................................................. 6

7.2.3 Mass transfer coefficient ........................................................................................................................................... 7

7.2.4 Air change rate ...................................................................... ............................................................................................. 7

7.2.5 Supply air concentration ........................................................................................................................................... 7

7.3 Factors affecting the concentration reduction performance .......................................................................... 7

7.3.1 General...................................................................................................................................................................................... 7

7.3.2 Temperature and humidity ..................................................................................................................................... 7

7.3.3 Concentration of target compound(s) in supply air .......................................................................... 7

7.3.4 Interfering gases .............................................................................................................................................................. 8

8 Verification of test conditions ................................................................................................................................................................. 8

8.1 Monitoring of test conditions ..................................................................................................................................................... 8

8.2 Airtightness of test chamber ....................................................................................................................................................... 8

8.3 Air change rate in test chamber ............................................................................................................................................... 8

8.4 Efficiency of the internal test chamber air mixing ................................................................................................... 8

8.5 Recovery ....................................................................................................................................................................................................... 8

9 Preparation of test chamber .................................................................................................................................................................... 9

10 Preparation of test specimens ................................................................................................................................................................ 9

11 Test method ............................................................................................................................................................................................................... 9

11.1 Background concentration and spiked supply air .................................................................................................... 9

11.2 Placing the test specimen in the test chamber ............................................................................................................ 9

11.3 Time intervals for measurement of test chamber concentration ............................................................... 9

11.3.1 Test for target compound concentration reduction .......................................................................... 9

11.3.2 Test for long-term reduction performance ............................................................................................10

11.3.3 Factors affecting the reduction performance .......................................................................................10

11.4 Air sampling ...........................................................................................................................................................................................10

12 Determination of target compound(s) .......................................................................................................................................10

13 Expression of results .....................................................................................................................................................................................10

13.1 Calculation of area-specific reduction rate ..................................................................................................................10

13.2 Calculation of equivalent ventilation rate per area ..............................................................................................11

13.3 Calculation of total mass per area of sorption and saturation mass per area ...............................11

14 Test report ................................................................................................................................................................................................................11

Annex A (normative) Sample tube test for long-term reduction performance ....................................................13

Annex B (normative) System for quality assurance and quality control .....................................................................17

Annex C (informative) Example measurements of construction materials ..............................................................19

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Annex D (informative) Example procedure for long-term reduction performance .........................................24

Bibliography .............................................................................................................................................................................................................................27

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Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 6,

Indoor air.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.

This second edition cancels and replaces the first edition (ISO 16000-23:2009), which has been

technically revised. The main changes compared to the previous edition are as follows.

— The target chemical compounds subject to this document have been changed from formaldehyde

only to formaldehyde and other carbonyl compounds.
A list of all parts in the ISO 16000 series can be found on the ISO website.
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Introduction

Sorptive building materials have been marketed in the form of sheet and board products for removing

airborne pollutants via physical sorption or chemical reaction.

Harmonized test methods for evaluating sorptive effects are important for quantitative performance

assessment of sorptive building materials that are used for reducing levels of indoor air contaminants.

This document specifies procedures for evaluating the performance of sorptive building materials in

reducing indoor air formaldehyde and other carbonyl compounds concentrations over time.

The performance of sorptive building materials is evaluated by measuring the area-specific reduction

rate and the saturation mass per area. The former directly indicates material performance with respect

to formaldehyde and other carbonyl compounds concentration reduction at a point in time; the latter

relates to the ability of a product to maintain such a performance. This is affected by a number of factors

and the performance test in conjunction with the standardized sampling, storage of samples and

preparation of test specimens has objectives to provide manufacturers, builders, and end users with

comparative performance data of sorptive building materials useful for the evaluation of the impact on

the indoor air quality, and to promote the development of improved products. Specific test conditions

are therefore defined in this document.

This document can be applied to most sorptive building materials used indoors and to formaldehyde and

other carbonyl compounds used as an indoor air contaminant. This method does not apply to materials

capable of decomposing target compound(s) by catalytic reaction in the presence of ultraviolet and

visible rays.
This document is based on the test chamber method as specified in ISO 16000-9.
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INTERNATIONAL STANDARD ISO 16000-23:2018(E)
Indoor air —
Part 23:
Performance test for evaluating the reduction of
formaldehyde and other carbonyl compounds
concentrations by sorptive building materials
1 Scope

This document specifies a general laboratory test method for evaluating the reduction of formaldehyde

and other carbonyl compounds (aldehydes and ketones) concentrations by sorptive building materials.

This method applies to boards, wallpapers, carpets, paint products, and other building materials. The

sorption of those target compounds, i.e. formaldehyde and other carbonyl compounds, can be brought

about by adsorption, absorption and chemisorption.

The method specified in this document employs formaldehyde and other carbonyl compound spiked

supply air to determine the performance of building materials in reducing formaldehyde and other

carbonyl compounds concentrations.

This document is based on the test chamber method specified in ISO 16000-9. Sampling, transport and

storage of materials to be tested and preparation of test specimens are specified in ISO 16000-11. Air

sampling and analytical methods for the determination of formaldehyde and other carbonyl compounds

are specified in ISO 16000-3, which is part of the complete procedure.

This document applies to the determination of formaldehyde and other carbonyl compounds,

such as formaldehyde, acetaldehyde, acetone, benzaldehyde, butyraldehyde, valeraldehyde,

2,5-dimethylbenzaldehyde, capronaldehyde, isovaleraldehyde, propionaldehyde, o-tolualdehyde,

m-tolualdehyde, p-tolualdehyde.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 16000-3, Indoor air — Part 3: Determination of formaldehyde and other carbonyl compounds in indoor

air and test chamber air — Active sampling method

ISO 16000-6, Indoor air — Part 6: Determination of volatile organic compounds in indoor and test chamber

air by active sampling on Tenax TA sorbent, thermal desorption and gas chromatography using MS or MS-FID

ISO 16000-9, Indoor air — Part 9: Determination of the emission of volatile organic compounds from

building products and furnishing — Emission test chamber method

ISO 16000-11, Indoor air — Part 11: Determination of the emission of volatile organic compounds from

building products and furnishing — Sampling, storage of samples and preparation of test specimens

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at https: //www .electropedia .org/
3.1
area-specific reduction rate
ads

mass of target compound(s) (3.14) sorbed per time unit per area at the specified elapsed time (3.4) from

the test start
3.2
breakthrough time

time at which the target compound (3.14) concentration in the air eluting from the sample tube reaches

0,5 % of the concentration in the supplied air
3.3
degradation coefficient

ratio of the mass of target compound(s) (3.14) removed by the initial performance divided by the mass

of the same compound(s) lost by deterioration
3.4
elapsed time
time from the start of test to the start of air sampling
Note 1 to entry: Elapsed time is expressed in hours or days.
3.5
equivalent ventilation rate per area
V, eq

increased clean air ventilation rate giving the same reduction in target compound (3.14) concentration

as the building material
3.6
guideline concentration

corresponding threshold indoor air concentration for target compound(s) (3.14) as specified by the

WHO or an appropriate national standards body
3.7
half-lifetime

time elapsed from the start of the test until the target compound (3.14) concentration reduction

performance decreases to one half of the initial concentration reduction performance

3.8
lifetime

time period over which the product continues to reduce target compound (3.14) concentrations

Note 1 to entry: The lifetime is given in days or years.

Note 2 to entry: The lifetime is estimated from the area-specific reduction rate (3.1) and sorption capacity

measured by the sample tube test.
3.9
mass transfer coefficient

coefficient arising from the concentration difference between the test specimen and ambient air over

its surface

Note 1 to entry: Mass transfer coefficient is expressed in metres per hour (m/h).

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3.10
recovery

measured mass of target compound(s) (3.14) in the air leaving the test chamber with no sample present

conditioned over a given time period divided by the mass of target compound(s) added to the test

chamber in the same time period

Note 1 to entry: The recovery is expressed as a percentage and provides information about the performance of

the entire method.
3.11
saturation mass per area

theoretical maximum mass of target compound(s) (3.14) that could be removed per area of the sorptive

material

Note 1 to entry: Saturation mass per area is expressed in micrograms per area. It corresponds to the total mass

per area of sorption at the half-lifetime (3.7), or is extrapolated from the sorption capacity (3.12) derived from the

test referenced in Annex A.
3.12
sorption capacity

total mass of target compound(s) (3.14) sorbed at breakthrough time (3.2) per mass of sorbent

Note 1 to entry: Sorption capacity is expressed in micrograms per gram and is measured using the test specified

in Annex A.
3.13
supply air concentration

mass concentration of target compound(s) (3.14) in the air for supply to the test chamber

3.14
target compound
formaldehyde or other carbonyl compound in indoor air
3.15
test chamber concentration

concentration of target compound(s) (3.14) measured at the outlet of a test chamber, derived by dividing

the mass of the target compound(s) sampled at the outlet of the chamber by the volume of sampled air

3.16
total mass per area of sorption

integral over time of area-specific reduction rate (3.1) from the start of the test to the specified elapsed

time (3.4) measured with the test chamber

Note 1 to entry: Total mass per area of sorption is expressed in micrograms per area.

3.17
air sampling period

period of time during which air is sampled from the outlet of the test chamber using sampling tubes or

other devices
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4 Symbols
Symbol Meaning Unit
A surface area of test specimen square metres
q Area-specific reduction rate micrograms per square metre per hour
ads
q air flow rate per area cubic metres per square metre per hour
V, a
q equivalent ventilation rate cubic metres per square metre per hour
V, eq
k mass transfer coefficient determined using water vapour metres per hour
L product loading factor square metres per cubic metre
m actual mass of test specimen in sample tube grams
n air change rate changes per hour
q air flow rate of test chamber cubic metres per hour
q air flow rate of sample tube litres per minute
t breakthrough time minutes
t elapsed time hours or days
t lifetime of the pollutant-removing performance hours, days or years
V air volume of test chamber cubic metres
w sorption capacity measured by sample tube micrograms per gram
ρ mass of sorptive material per area (surface density) grams per square metre
ρ saturation mass per area micrograms per square metre

ρ total mass per area of sorption measured by chamber test micrograms per square metre

ρ concentration of target compound(s) at test chamber inlet micrograms per cubic metre

in, t
at elapsed time t
ρ test chamber concentration at elapsed time t micrograms per cubic metre
out, t
ρ supply air concentration in sample tube micrograms per cubic metre
5 Principle

The performance of a building material in reducing the concentration of target compound(s),

i.e. formaldehyde and other carbonyl compounds, from the indoor air is evaluated by monitoring the

reduction of the concentration of these substances in the air of a test chamber containing a specimen

of the test material. The test assesses both the initial performance of the material and how long that

performance is maintained.

In this test method, target compound spiked air is supplied into the test chamber. The spiked air should

be prepared at approximately the guideline concentration level for the target compound(s) in indoor

air. Reference to the WHO or an appropriate national standards body can be made if this is clearly

highlighted in the test report.

Performance is determined by monitoring the difference in the concentration of target compound(s)

at the inlet and outlet of the test chamber. Testing should be carried out for the half-lifetime, i.e. until

the concentration reduction performance of target compound(s) drops to one half of the performance

recorded at the start of the test under constant ventilation conditions. With this test, the area-specific

reduction rate, ρ , and total mass per area of sorption, ρ , at the half-lifetime are determined. The

ads Ac

value measured for ρ at the half-lifetime is defined as the saturation mass per area, ρ .

Ac Aa

If a test material continues to reduce target compound concentrations for longer than 28 days, the

alternative methods specified in Annex A for determining ρ may be applied.

The performance of sorptive building materials is mainly determined by the target compound

concentration, the mass transfer coefficient of target compound(s) to the surface, and the sorption

characteristics of the building materials themselves (adsorption isotherm, diffusion resistance, and so

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on). Therefore, the performance test method shall specify both the concentration of target compound(s)

and the mass transfer coefficient associated with the sorptive building material.

A re-emission test should be conducted following the test for evaluating the concentration reduction

performance, as described in 11.3.1.

NOTE The long-term formaldehyde target compound reduction performance is represented by the

saturation mass per area, ρ , and, if necessary, the lifetime of the pollutant-removing performance, t , as the

Aa lt
subsidiary index.
6 Apparatus and materials
The usual laboratory apparatus and, in particular, the following.

6.1 Test chamber, complying with the relevant specifications and requirements of ISO 16000-9

(see Figure 1). No air shall be allowed to circulate from the outlet back to the inlet.

Key

1 supply air spiked with target compound(s) (6.3) 5 device to circulate air and control air velocity

2 air sampling device (6.6) 6 temperature/humidity monitoring apparatus (6.4)
3 test specimen 7 test chamber outlet
4 test chamber (6.1) 8 air sampling device (6.6)
Figure 1 — Outline of the test chamber system

6.2 Air purifier or cylinder of clean air, to ensure the supply air is as clean as possible before being

spiked with target compound(s), i.e. it shall not contain any contaminants at levels greater than the

chamber background requirements.

6.3 Supply air spiked with target compound(s), created by applying a standard gas (whose target

compound concentration is known) to the test chamber. Alternatively, use a stable source to generate

air spiked with target compound(s) that can be supplied to the test chamber. The stability of the spiked

target compound concentration shall be monitored.
6.4 Temperature and humidity monitoring apparatus.

Temperature shall be maintained either by installing a test chamber in a place maintained at the

required temperature, or by maintaining the required temperature in the chamber. Relative humidity

shall be maintained at the required humidity of the supply air. Temperature and humidity controls of

the supply air are described in ISO 16000-9.
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6.5 Air flow meter, installed at the inlet or the outlet of the test chamber to measure the air flow rate

through the chamber.
6.6 Air sampling devices.

Use the inlet and outlet air of the test chamber for sampling. When a separate sampling port is used,

sample directly from the inlet or outlet of the chamber.

If a duct or tube is used, it shall be as short as possible and kept at the same air temperature as that of

the test chamber. Such a duct or tube shall be made of a material with a very low sorption capacity, e.g.

polytetrafluoroethylene.

The sum of sampling air flow rates shall be smaller than the air flow rate into the chamber. Sampling

devices shall comply with the specifications of ISO 16000-3. When the air is sampled from the inlet,

ensure the supply air flow rate remains constant.

A multiport sampling manifold may be used to provide flexibility for duplicate air sampling. A mixing

chamber between the test chamber and the manifold or between the air inlet and the test chamber can

be included to permit addition and mixing of internal standard gases with the test chamber air stream.

The exhaust from the test chamber should be ducted into a fume hood, ensuring that target compound

spiked air and any chemicals emitted
...

NORME ISO
INTERNATIONALE 16000-23
Deuxième édition
2018-12
Air intérieur —
Partie 23:
Essai de performance pour
l'évaluation de la réduction des
concentrations en formaldéhyde et
autres composés carbonylés par des
matériaux de construction sorptifs
Indoor air —
Part 23: Performance test for evaluating the reduction of
formaldehyde and other carbonyl compounds concentrations by
sorptive building materials
Numéro de référence
ISO 16000-23:2018(F)
ISO 2018
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ISO 16000-23:2018(F)
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ISO 16000-23:2018(F)
Sommaire Page

Avant-propos ................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Domaine d’application ................................................................................................................................................................................... 1

2 Références normatives ................................................................................................................................................................................... 1

3 Termes et définitions ....................................................................................................................................................................................... 2

4 Symboles ....................................................................................................................................................................................................................... 4

5 Principe .......................................................................................................................................................................................................................... 4

6 Appareillage .............................................................................................................................................................................................................. 5

7 Conditions d’essai ................................................................................................................................................................................................ 6

7.1 Généralités .................................................................................................................................................................................................. 6

7.2 Conditions d’essai pour la détermination de la performance en matière de

réduction de la concentration .................................................................................................................................................... 6

7.2.1 Température et humidité relative ..................................................................................................................... 6

7.2.2 Qualité de l’air d’alimentation et concentration de fond .............................................................. 7

7.2.3 Coefficient de transfert massique ..................................................................................................................... 7

7.2.4 Taux de renouvellement de l’air ......................................................................................................................... 7

7.2.5 Concentration de l’air d’alimentation ............................................................................................................ 7

7.3 Facteurs affectant les performances en matière de réduction de la concentration .................... 8

7.3.1 Généralités ............................................................................................................................................................................ 8

7.3.2 Température et humidité .......................................................................................................................................... 8

7.3.3 Concentration en composé(s) cible(s) dans l’air d’alimentation ........................................... 8

7.3.4 Gaz interférents ................................................................................................................................................................ 8

8 Vérification des conditions d’essai .................................................................................................................................................... 8

8.1 Surveillance des conditions d’essai ....................................................................................................................................... 8

8.2 Étanchéité à l’air de la chambre d’essai ............................................................................................................................. 8

8.3 Taux de renouvellement d’air dans la chambre d’essai ....................................................................................... 9

8.4 Efficacité du mélange de l’air dans la chambre d’essai interne .................................................................... 9

8.5 Récupération ............................................................................................................................................................................................. 9

9 Préparation de la chambre d’essai .................................................................................................................................................... 9

10 Préparation des éprouvettes pour essai ...................................................................................................................................... 9

11 Méthode d’essai ..................................................................................................................................................................................................10

11.1 Concentration de fond et air d’alimentation dopé ................................................................................................10

11.2 Installation de l’éprouvette dans la chambre d’essai ..........................................................................................10

11.3 Intervalles de temps pour le mesurage de la concentration de la chambre d’essai .................10

11.3.1 Essai de la performance en matière de réduction de la concentration en

composé(s) cible(s) ....................................................................................................................................................10

11.3.2 Essai relatif aux performances longue durée en matière de réduction .........................11

11.3.3 Facteurs affectant les performances en matière de réduction ..............................................11

11.4 Prélèvement d’air ...............................................................................................................................................................................11

12 Détermination du ou des composés cibles .............................................................................................................................11

13 Expression des résultats............................................................................................................................................................................11

13.1 Calcul du taux de réduction spécifique par unité de surface .......................................................................11

13.2 Calcul du débit surfacique de ventilation équivalent ..........................................................................................12

13.3 Calcul de la masse surfacique totale de sorption et de la masse surfacique de saturation 12

14 Rapport d’essai ....................................................................................................................................................................................................12

Annexe A (normative) Essai relatif à la performance longue durée en matière de réduction

au moyen d’un tube de prélèvement.............................................................................................................................................14

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ISO 16000-23:2018(F)

Annexe B (normative) Système d’assurance qualité et de contrôle qualité .............................................................18

Annexe C (informative) Exemples de mesurages de matériaux de construction ................................................20

Annexe D (informative) Exemple de mode opératoire pour les performances en matière de

réduction de la concentration à long terme ..........................................................................................................................25

Bibliographie ...........................................................................................................................................................................................................................28

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ISO 16000-23:2018(F)
Avant-propos

L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes

nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est

en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude

a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,

gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.

L’ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui

concerne la normalisation électrotechnique.

Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont

décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier de prendre note des différents

critères d’approbation requis pour les différents types de documents ISO. Le présent document a été

rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www

.iso .org/directives).

L’attention est attirée sur le fait que certains des éléments du présent document peuvent faire l’objet de

droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable

de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant

les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de

l’élaboration du document sont indiqués dans l’Introduction et/ou dans la liste des déclarations de

brevets reçues par l’ISO (voir www .iso .org/brevets).

Les appellations commerciales éventuellement mentionnées dans le présent document sont données

pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un

engagement.

Pour une explication de la nature volontaire des normes, la signification des termes et expressions

spécifiques de l’ISO liés à l’évaluation de la conformité, ou pour toute information au sujet de l’adhésion

de l’ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles

techniques au commerce (OTC), voir le lien suivant: www .iso .org/iso/fr/avant -propos.

Le présent document a été élaboré par le comité technique ISO/TC 146, Qualité de l’air, sous-comité SC 6,

Air intérieur.

Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent

document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes

se trouve à l’adresse www .iso .org/fr/members .html.

Cette deuxième édition annule et remplace la première édition (ISO 16000-23:2009), qui a fait l’objet

d’une révision technique. Les principales modifications par rapport à l’édition précédente sont les

suivantes:

— les composés chimiques cibles auxquels s’applique le présent document sont le formaldéhyde et

autres composés carbonylés, et non plus le formaldéhyde seul.

Une liste de toutes les parties de la série ISO 16000 se trouve sur le site web de l’ISO.

© ISO 2018 – Tous droits réservés v
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ISO 16000-23:2018(F)
Introduction

Les matériaux de construction sorptifs ont été mis sur le marché sous forme de produits en film et en

planche servant à éliminer les polluants aériens par sorption physique ou par réaction chimique.

La normalisation des méthodes d’essai relatives à l’évaluation des effets sorptifs est essentielle pour

effectuer une analyse quantitative des performances des matériaux de construction sorptifs utilisés

pour réduire les niveaux des contaminants dans l’air intérieur.

Le présent document spécifie des procédures d’évaluation des performances, dans le temps, des

matériaux de construction sorptifs en matière de réduction des concentrations en formaldéhyde et

autres composés carbonylés.

La performance des matériaux de construction sorptifs est évaluée par mesurage du taux de réduction

spécifique par unité de surface et de la masse surfacique de saturation. Le premier indique directement

la performance du matériau de construction en fonction de la réduction de la concentration en

formaldéhyde et autres composés carbonylés à un instant donné; la dernière indique la capacité d’un

produit à maintenir ladite performance. Celle-ci est affectée par un certain nombre de facteurs. L’essai

de performance, combiné à la normalisation de l’échantillonnage, du stockage des échantillons et de la

préparation des éprouvettes, a un double objectif: fournir aux fabricants, constructeurs et utilisateurs

finaux, des données de performance comparatives permettant d’évaluer l’impact des matériaux de

construction sorptifs sur la qualité de l’air intérieur, et promouvoir le développement de produits

améliorés. Des conditions d’essai spécifiques sont par conséquent définies dans le présent document.

Le présent document peut s’appliquer à la majorité des matériaux de construction sorptifs utilisés en

intérieur ainsi qu’au formaldéhyde et autres composés carbonylés utilisés comme contaminants dans

l’air intérieur. Cette méthode ne s’applique pas aux matériaux capables de décomposer le(s) composé(s)

cible(s) par réaction catalytique en présence de rayons ultraviolets et visibles.

Le présent document s’appuie sur la méthode de la chambre d’essai spécifiée dans l’ISO 16000-9.

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NORME INTERNATIONALE ISO 16000-23:2018(F)
Air intérieur —
Partie 23:
Essai de performance pour l'évaluation de la réduction
des concentrations en formaldéhyde et autres composés
carbonylés par des matériaux de construction sorptifs
1 Domaine d’application

Le présent document spécifie une méthode générale d’essai de laboratoire en vue de l’évaluation

de la réduction des concentrations en formaldéhyde et autres composés carbonylés (aldéhydes et

cétones) grâce à l’utilisation de matériaux de construction sorptifs. Cette méthode s’applique aux

planches, papiers peints, tapis, produits de peinture et autres matériaux de construction. La sorption

des composés cibles, à savoir le formaldéhyde et autres composés carbonylés, peut être réalisée par

adsorption, absorption et chimisorption.

La méthode spécifiée dans le présent document emploie une alimentation en air dopé au formaldéhyde

et autres composés carbonylés pour déterminer l’aptitude du produit de construction à réduire les

concentrations en formaldéhyde et autres composés carbonylés.

Le présent document s’appuie sur la méthode de la chambre d’essai spécifiée dans l’ISO 16000-9.

L’échantillonnage, le transport et le stockage des matériaux à soumettre à essai, ainsi que la préparation

des éprouvettes, sont spécifiés dans l’ISO 16000-11. Le prélèvement de l’air et les méthodes d’analyse

en vue de la détermination du formaldéhyde et d’autres composés carbonylés sont décrits dans

l’ISO 16000-3, qui fait partie de la procédure complète.

Le présent document s’applique à la détermination du formaldéhyde et d’autres composés carbonylés,

tels que le formaldéhyde, l’acétaldéhyde, l’acétone, le benzaldéhyde, le butyraldéhyde, le valéraldéhyde, le

2,5-diméthylbenzaldéhyde, le capronaldéhyde, l’isovaléraldéhyde, le propionaldéhyde, l’o-tolualdéhyde,

le m-tolualdéhyde, le p-tolualdéhyde.
2 Références normatives

Les documents suivants cités dans le texte constituent, pour tout ou partie de leur contenu, des

exigences du présent document. Pour les références datées, seule l’édition citée s’applique. Pour les

références non datées, la dernière édition du document de référence s’applique (y compris les éventuels

amendements).

ISO 16000-3, Air intérieur — Partie 3: Dosage du formaldéhyde et d'autres composés carbonylés dans l'air

intérieur et dans l'air des chambres d'essai — Méthode par échantillonnage actif

ISO 16000-6, Air intérieur — Partie 6: Dosage des composés organiques volatils dans l'air intérieur des

locaux et chambres d'essai par échantillonnage actif sur le sorbant Tenax TA, désorption thermique et

chromatographie en phase gazeuse utilisant MS ou MS-FID

ISO 16000-9, Air intérieur — Partie 9: Dosage de l'émission de composés organiques volatils de produits de

construction et d'objets d'équipement — Méthode de la chambre d'essai d'émission

ISO 16000-11, Air intérieur — Partie 11: Dosage de l'émission de composés organiques volatils de produits

de construction et d'objets d'équipement — Échantillonnage, conservation des échantillons et préparation

d'échantillons pour essai
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ISO 16000-23:2018(F)
3 Termes et définitions

Pour les besoins du présent document, les termes et définitions suivants s’appliquent.

L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en

normalisation, consultables aux adresses suivantes:

— ISO Online browsing platform: disponible à l’adresse https: //www .iso .org/obp;

— IEC Electropedia: disponible à l’adresse https: //www .electropedia .org/.
3.1
taux de réduction spécifique par unité de surface
ads

masse de composé(s) cible(s) (3.14) sorbée, par unité de temps et de surface, mesurée au temps écoulé

(3.4) spécifié depuis le début de l’essai
3.2
temps de claquage

moment où la concentration en composé(s) cible(s) (3.14) dans l’air éluant du tube de prélèvement atteint

0,5 % de la concentration dans l’air d’alimentation
3.3
coefficient de dégradation

rapport de la masse de composé(s) cible(s) (3.14) éliminée par la performance initiale à la masse du (des)

même(s) composé(s) éliminée par détérioration
3.4
temps écoulé
temps écoulé entre le début de l’essai et le début des prélèvements d’air
Note 1 à l'article: Le temps écoulé est exprimé en heures ou en jours.
3.5
débit surfacique de ventilation équivalent
V, eq

débit de ventilation d’air propre plus important permettant d’obtenir une réduction de la concentration

en composé(s) cible(s) (3.14) identique à celle du matériau de construction
3.6
concentration de référence

seuil de concentration correspondant à un (des) composé(s) cible(s) (3.14) de l’air intérieur, tel que

spécifié par l’OMS ou par un organisme national de normalisation approprié
3.7
moitié de la durée de vie

temps écoulé entre le début de l’essai et le moment où la performance en matière de réduction de la

concentration en composé(s) cible(s) (3.14) atteint la moitié de la performance initiale de réduction de la

concentration
3.8
durée de vie

période de temps pendant laquelle le produit conserve sa capacité de réduction de concentration en

composé(s) cible(s) (3.14)
Note 1 à l'article: La durée de vie est exprimée en jours ou en années.

Note 2 à l'article: La durée de vie est estimée à partir du taux de réduction spécifique par unité de surface (3.1) et

de la capacité de sorption mesurée au moyen d’un tube de prélèvement.
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ISO 16000-23:2018(F)
3.9
coefficient de transfert massique

coefficient résultant de la différence de concentration entre l’éprouvette et l’air ambiant à sa surface

Note 1 à l'article: Le coefficient de transfert massique est exprimé en mètres par heure (m/h).

3.10
récupération

masse de composé(s) cible(s) (3.14) dans l’air sortant de la chambre d’essai, mesurée sur une période

donnée en l’absence d’échantillon, divisée par la masse du (des) composé(s) cible(s) ajoutée à la chambre

d’essai au cours de la même période

Note 1 à l'article: La récupération, exprimée en pourcentage, fournit des informations sur les performances de la

méthode complète.
3.11
masse surfacique de saturation

masse théorique maximale de composé(s) cible(s) (3.14) pouvant être retirée par aire de matériau sorptif

Note 1 à l'article: La masse surfacique de saturation est exprimée en microgrammes par mètre carré. Elle

correspond à la masse surfacique totale de sorption à la moitié de la durée de vie (3.7) ou elle est extrapolée à

partir de la capacité de sorption (3.12) dérivée de l’essai mentionné à l’Annexe A.

3.12
capacité de sorption

masse totale de composé(s) cible(s) (3.14) sorbée au temps de claquage (3.2) par masse de sorbant

Note 1 à l'article: La capacité de sorption est exprimée en microgrammes par gramme et est mesurée au moyen

de l’essai spécifié à l’Annexe A.
3.13
concentration de l’air d’alimentation

fraction massique de composé(s) cible(s) (3.14) dans l’air qui alimente la chambre d’essai

3.14
composé cible
formaldéhyde ou autre composé carbonylé dans l’air intérieur
3.15
concentration dans la chambre d’essai

concentration en composé(s) cible(s) (3.14) mesurée à la sortie de la chambre d’essai, calculée en divisant

la masse de composé(s) cible(s) prélevée à la sortie de la chambre d’essai par le volume d’air prélevé

3.16
masse surfacique totale de sorption

intégrale dans le temps du taux de réduction spécifique par unité de surface (3.1) entre le début de l’essai

et la fin du temps écoulé (3.4) spécifié, mesurée avec la chambre d’essai

Note 1 à l'article: La masse surfacique totale de sorption est exprimée en microgrammes par mètre carré.

3.17
période de prélèvement de l’air

période de temps durant laquelle l’air est prélevé à la sortie de la chambre d’essai au moyen de tubes de

prélèvement ou autres appareils
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ISO 16000-23:2018(F)
4 Symboles
Symbole Définition Unité
A surface de l’éprouvette mètres carrés

q taux de réduction spécifique par unité de surface microgrammes par mètre carré par

ads
heure
q débit d’air surfacique mètres cubes par mètre carré par heure
V, a

q débit surfacique de ventilation équivalent mètres cubes par mètre carré par heure

V, eq
k coefficient de transfert massique déterminé à l’aide de mètres par heure
vapeur d’eau
L facteur de charge du produit mètres carrés par mètre cube
m masse réelle de l’éprouvette dans le tube de prélèvement grammes
n taux de renouvellement de l’air renouvellements par heure
q débit d’air de la chambre d’essai mètres cubes par heure
q débit d’air du tube de prélèvement litres par minute
t temps de claquage minutes
t temps écoulé heures ou jours

t durée de vie de la performance d’élimination des polluants heures, jours ou années

V volume d’air de la chambre d’essai mètres cubes
w capacité de sorption mesurée par tube de prélèvement microgrammes par gramme

ρ masse surfacique de matériau sorptif (densité de surface) grammes par mètre carré

ρ masse surfacique de saturation microgrammes par mètre carré

ρ masse surfacique totale de sorption mesurée par essai microgrammes par mètre carré

en chambre

ρ concentration en composé(s) cible(s) à l’entrée de la microgrammes par mètre cube

in, t
chambre d’essai au temps écoulé t

ρ concentration dans la chambre d’essai au temps écoulé t microgrammes par mètre cube

out, t

ρ concentration en air d’alimentation dans le tube de pré- microgrammes par mètre cube

lèvement
5 Principe

La performance d’un matériau de construction en matière de réduction de la concentration en

composé(s) cible(s), à savoir formaldéhyde et autres composés carbonylés, dans l’air intérieur, est

évaluée en surveillant la réduction de la concentration de ces substances dans l’air d’une chambre

d’essai contenant une éprouvette du matériau soumis à essai. L’essai évalue la performance initiale du

matériau ainsi que la durée pendant laquelle la performance est maintenue.

Dans cette méthode d’essai, la chambre d’essai est alimentée avec de l’air dopé avec le(s) composé(s)

cible(s). Il convient de préparer l’air dopé approximativement à la concentration de référence pour

le(s) composé(s) cible(s) dans l’air intérieur. Il est possible de faire référence à l’OMS ou à un organisme

national de normalisation approprié si le rapport d’essai l’indique clairement.

La performance est déterminée en observant la différence de concentration en composé(s) cible(s)

entre l’entrée et la sortie de la chambre d’essai. Il convient de réaliser l’essai pendant la moitié de la

durée de vie, c’est-à-dire jusqu’à ce que la performance en matière de réduction de la concentration

en composé(s) cible(s) soit réduite à la moitié de la performance constatée au début de l’essai dans des

conditions de ventilation constantes. Cet essai permet de déterminer le taux de réduction spécifique

par unité de surface, ρ , et la masse surfacique totale de sorption, ρ , à la moitié de la durée de vie.

ads Ac

La valeur mesurée pour ρ à la moitié de la durée de vie est définie comme la masse surfacique de

saturation, ρ .
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ISO 16000-23:2018(F)

Si la performance d’un matériau d’essai, en matière de réduction de la concentration en composé cible,

se confirme pendant plus de 28 jours, l’application d’autres méthodes, spécifiées à l’Annexe A, pour

déterminer ρ est admise.

Les performances des matériaux de construction sorptifs sont déterminées en grande partie par la

concentration en composé(s) cible(s), le coefficient de transfert massique du ou des composés cibles

à leur surface, ainsi que les caractéristiques de sorption des matériaux de construction (isotherme

d’adsorption, résistance à la diffusion, etc.). De ce fait, la méthode d’essai relative aux performances

doit spécifier la concentration en composé(s) cible(s) et le coefficient de transfert massique associés au

matériau de construction sorptif.

Il convient de réaliser un essai de réémission à la suite de l’essai permettant d’évaluer les performances

en matière de réduction de la concentration, comme décrit en 11.3.1.

NOTE La performance longue durée en matière de réduction de la concentration en composé(s) cible(s) est

représentée par la masse surfacique de saturation, ρ , avec, si nécessaire, la durée de vie de la performance

d’élimination des polluants, t , en indicateur secondaire.
6 Appareillage
Appareillage usuel de laboratoire, et en particulier ce qui suit.

6.1 Chambre d’essai, conforme aux spécifications et exigences appropriées de l’ISO 16000-9

(voir la Figure 1). Aucun retour du flux d’air de la sortie vers l’entrée ne doit être possible.

Légende

1 alimentation en air dopé avec le(s) 5 dispositif de circulation d’air et de contrôle de vitesse de l’air

composé(s) cible(s) (6.3)

2 dispositif de prélèvement de l’air (6.6) 6 dispositif de contrôle de la température/de l’humidité (6.4)

3 éprouvette 7 sortie de la chambre d’essai
4 chambre d’essai (6.1) 8 dispositif de prélèvement de l’air (6.6)
Figure 1 — Schéma de la chambre d’essai

6.2 Purificateur d’air ou air propre en cylindre, afin de garantir que l’air d’alimentation, avant d’être

dopé avec le(s) composé(s) cible(s), est le plus propre possible, c’est-à-dire qu’il ne doit pas contenir de

contaminants à des niveaux qui dépassent ceux spécifiés pour la concentration de fond de la chambre

d’essai.

6.3 Alimentation en air dopé avec le(s) composé(s) cible(s), réalisée en introduisant dans la

chambre d’essai un gaz étalon (dont la concentration en composé(s) cible(s) est connue). Il est aussi

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ISO 16000-23:2018(F)

possible d’utiliser une source stable pour générer l’air dopé avec le(s) composé(s) cible(s) introduit dans

la chambre d’essai. La stabilité de la concentration en composé(s) cible(s) d
...

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