Workplace air - Gases and vapours - Requirements for evaluation of measuring procedures using pumped samplers (ISO 22065:2020)

This document specifies performance requirements and test methods under prescribed laboratory conditions for the evaluation of pumped samplers used in conjunction with an air sampling pump and of procedures using these samplers for the determination of gases and vapours in workplace atmospheres.
This document addresses requirements for method developers and/or manufacturers.
NOTE 1 For the purposes of this document, a manufacturer can be any commercial or non-commercial entity.
NOTE 2 For the sampling of semi-volatile compounds which can appear as a mixture of vapours and airborne
particles in workplace atmospheres see EN 13936.
This document is applicable to pumped samplers and measuring procedures using these samplers in which sampling and analysis are carried out in separate stages.
This document is not applicable to:
— pumped samplers which are used for the direct determination of concentrations, for example, length-of-stain detector tubes;
— samplers which rely on sorption into a liquid, and subsequent analysis of the solution (bubblers).

Arbeitsplatzatmosphäre - Gase und Dämpfe - Anforderungen und Prüfverfahren zur Messung mit pumpenbetriebenen Probenahmeeinrichtungen (ISO 22065:2020)

Dieses Dokument legt Anforderungen an die Leistungsfähigkeit und Prüfverfahren für die Evaluierung von pumpenbetriebenen Sammlern unter vorgegebenen Laborbedingungen fest, die in Verbindung mit einer Luftsammelpumpe verwendet werden, sowie von Verfahren, die diese Sammler zur Bestimmung von Gasen und Dämpfen in der Arbeitsplatzatmosphäre verwenden.
Dieses Dokument behandelt Anforderungen für Entwickler des Verfahrens und/oder Hersteller.
ANMERKUNG 1 Für den Zweck dieses Dokuments kann ein Hersteller jede kommerzielle oder nicht-kommerzielle Entität sein.
ANMERKUNG 2 Für die Probenahme von schwerflüchtigen Verbindungen, die als Mischung von Dampf und luftgetragenen Partikeln in Arbeitsplatzatmosphären auftreten können, siehe EN 13936.
Dieses Dokument gilt für pumpenbetriebene Sammler und diese Sammler verwendende Messverfahren, bei denen Probenahme und Analyse in getrennten Schritten vorgenommen werden.
Dieses Dokument gilt nicht für
- pumpenbetriebene Sammler, die zur direkten Konzentrationsbestimmung verwendet werden, z. B. Prüfröhrchen mit Längenanzeige;
- Sammler, deren Funktionsweise auf Sorption in einer Flüssigkeit und anschließender Analyse der Lösung beruht (Gaswaschflaschen).

Air des lieux de travail - Gaz et vapeurs - Exigences pour l'évaluation des procédures de mesure à l'aide de dispositifs de prélèvement par pompage (ISO 22065:2020)

Zrak na delovnem mestu - Plini in pare - Zahteve za vrednotenje postopkov za merjenje z vzorčevalniki s črpanjem (ISO 22065:2020)

General Information

Status
Published
Public Enquiry End Date
14-Sep-2020
Publication Date
10-Dec-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
03-Dec-2020
Due Date
07-Feb-2021
Completion Date
11-Dec-2020

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SLOVENSKI STANDARD
SIST EN ISO 22065:2021
01-januar-2021
Nadomešča:
SIST EN ISO 22065:2019
Zrak na delovnem mestu - Plini in pare - Zahteve za vrednotenje postopkov za
merjenje z vzorčevalniki s črpanjem (ISO 22065:2020)
Workplace air - Gases and vapours - Requirements for evaluation of measuring
procedures using pumped samplers (ISO 22065:2020)
Arbeitsplatzatmosphäre - Gase und Dämpfe - Anforderungen und Prüfverfahren zur
Messung mit pumpenbetriebenen Probenahmeeinrichtungen (ISO 22065:2020)

Air des lieux de travail - Gaz et vapeurs - Exigences pour l'évaluation des procédures de

mesure à l'aide de dispositifs de prélèvement par pompage (ISO 22065:2020)
Ta slovenski standard je istoveten z: EN ISO 22065:2020
ICS:
13.040.30 Kakovost zraka na delovnem Workplace atmospheres
mestu
SIST EN ISO 22065:2021 en,fr,de

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

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SIST EN ISO 22065:2021
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SIST EN ISO 22065:2021
EN ISO 22065
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 13.040.30 Supersedes EN ISO 22065:2019
English Version
Workplace air - Gases and vapours - Requirements for
evaluation of measuring procedures using pumped
samplers (ISO 22065:2020)

Air des lieux de travail - Gaz et vapeurs - Exigences Arbeitsplatzatmosphäre - Gase und Dämpfe -

pour l'évaluation des procédures de mesure à l'aide de Anforderungen und Prüfverfahren zur Messung mit

dispositifs de prélèvement par pompage (ISO pumpenbetriebenen Probenahmeeinrichtungen (ISO

22065:2020) 22065:2020)
This European Standard was approved by CEN on 17 October 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22065:2020 E

worldwide for CEN national Members.
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SIST EN ISO 22065:2021
EN ISO 22065:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 22065:2021
EN ISO 22065:2020 (E)
European foreword

This document (EN ISO 22065:2020) has been prepared by Technical Committee ISO/TC 146 "Air

quality" in collaboration with Technical Committee CEN/TC 137 “Assessment of workplace exposure to

chemical and biological agents” the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by May 2021, and conflicting national standards shall be

withdrawn at the latest by May 2021.

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

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 22065:2019.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 22065:2020 has been approved by CEN as EN ISO 22065:2020 without any modification.

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SIST EN ISO 22065:2021
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SIST EN ISO 22065:2021
INTERNATIONAL ISO
STANDARD 22065
Second edition
2020-11
Workplace air — Gases and vapours
— Requirements for evaluation of
measuring procedures using pumped
samplers
Air des lieux de travail — Gaz et vapeurs — Exigences pour
l'évaluation des procédures de mesure à l'aide de dispositifs de
prélèvement par pompage
Reference number
ISO 22065:2020(E)
ISO 2020
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SIST EN ISO 22065:2021
ISO 22065:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
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SIST EN ISO 22065:2021
ISO 22065:2020(E)
Contents Page

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

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

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

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

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

4 Symbols and abbreviated terms ........................................................................................................................................................... 2

5 Sampler types .......................................................................................................................................................................................................... 3

6 Requirements .......................................................................................................................................................................................................... 3

6.1 General ........................................................................................................................................................................................................... 3

6.2 Sampler requirements ...................................................................................................................................................................... 3

6.2.1 Flow resistance ................................................................................................................................................................. 3

6.2.2 Sampler leak test (for Type B samplers) ..................................................................................................... 4

6.2.3 Shelf life ................................................................................................................................................................................... 5

6.2.4 Sampler identification ................................................................................................................................................. 5

6.2.5 Marking .................................................................................................................................................................................... 5

6.2.6 Instructions for use........................................................................................................................................................ 5

6.3 Measuring procedure requirements .................................................................................................................................... 5

6.3.1 Sampling procedure requirements .................................................................................................................. 5

6.3.2 Analytical procedure requirements ................................................................................................................ 6

6.3.3 Expanded uncertainty ................................................................................................................................................. 7

6.3.4 Method description ....................................................................................................................................................... 7

7 General test conditions .................................................................................................................................................................................. 8

7.1 Reagents........................................................................................................................................................................................................ 8

7.2 Apparatus .................................................................................................................................................................................................... 8

7.3 Calibration gas mixture ................................................................................................................................................................... 8

7.3.1 Generation ............................................................................................................................................................................. 8

7.3.2 Determination of mass concentration ........................................................................................................... 9

7.3.3 Independent method .................................................................................................................................................... 9

8 Test methods ............................................................................................................................................................................................................. 9

8.1 General ........................................................................................................................................................................................................... 9

8.2 Sampler test methods ....................................................................................................................................................................10

8.2.1 Flow resistance ..............................................................................................................................................................10

8.2.2 Sampler leak test (for Type B samplers) ..................................................................................................10

8.2.3 Shelf life (for Type A impregnated supports) ......................................................................................10

8.2.4 Sampler identification ..............................................................................................................................................11

8.2.5 Marking .................................................................................................................................................................................11

8.2.6 Instructions for use.....................................................................................................................................................11

8.3 Measuring procedure test methods ...................................................................................................................................11

8.3.1 Determination of the recommended sampling conditions ......................................................11

8.3.2 Analytical procedure test methods ...............................................................................................................14

8.3.3 Method recovery and method precision ..................................................................................................15

8.4 Uncertainty of measurement ...................................................................................................................................................17

8.4.1 Identification of random and non-random uncertainty components .............................17

8.4.2 Estimation of individual uncertainty components ..........................................................................17

8.4.3 Calculation of expanded uncertainty ..........................................................................................................19

9 Test report ................................................................................................................................................................................................................19

Annex A (informative) Examples for the determination of the breakthrough volume .................................20

Annex B (informative) Experiments for method validation ......................................................................................................22

Annex C (informative) Estimation of uncertainty of measurement ..................................................................................24

© ISO 2020 – All rights reserved iii
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SIST EN ISO 22065:2021
ISO 22065:2020(E)

Annex D (informative) Example for estimation of expanded uncertainty .................................................................34

Bibliography .............................................................................................................................................................................................................................37

iv © ISO 2020 – All rights reserved
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SIST EN ISO 22065:2021
ISO 22065:2020(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 of 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 www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 2,

Workplace atmospheres.

This second edition cancels and replaces the first edition (ISO 22065:2019), of which it constitutes a

minor revision. The changes compared to the previous edition are as follows:
— Editorial updates.

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.
© ISO 2020 – All rights reserved v
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SIST EN ISO 22065:2021
ISO 22065:2020(E)
Introduction

This document provides a framework for assessing the performance of procedures for measuring

gases and vapours against the general requirements for the performance of procedures for measuring

chemical agents in workplace atmospheres as specified in ISO 20581. It enables manufacturers and

users of pumped samplers and developers and users of procedures for measuring gases and vapours to

adopt a consistent approach to method validation (see Annex B).
vi © ISO 2020 – All rights reserved
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SIST EN ISO 22065:2021
INTERNATIONAL STANDARD ISO 22065:2020(E)
Workplace air — Gases and vapours — Requirements
for evaluation of measuring procedures using pumped
samplers
1 Scope

This document specifies performance requirements and test methods under prescribed laboratory

conditions for the evaluation of pumped samplers used in conjunction with an air sampling pump and of

procedures using these samplers for the determination of gases and vapours in workplace atmospheres.

This document addresses requirements for method developers and/or manufacturers.

NOTE 1 For the purposes of this document, a manufacturer can be any commercial or non-commercial entity.

NOTE 2 For the sampling of semi-volatile compounds which can appear as a mixture of vapours and airborne

particles in workplace atmospheres see EN 13936.

This document is applicable to pumped samplers and measuring procedures using these samplers in

which sampling and analysis are carried out in separate stages.
This document is not applicable to:

— pumped samplers which are used for the direct determination of concentrations, for example,

length-of-stain detector tubes;

— samplers which rely on sorption into a liquid, and subsequent analysis of the solution (bubblers).

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 8655-2, Piston-operated volumetric apparatus — Part 2: Piston pipettes

ISO 8655-6, Piston-operated volumetric apparatus — Part 6: Gravimetric methods for the determination

of measurement error

ISO 13137:2013, Workplace atmospheres — Pumps for personal sampling of chemical and biological

agents — Requirements and test methods
ISO 18158, Workplace air — Terminology

ISO 20581, Workplace air — General requirements for the performance of procedures for the measurement

of chemical agents
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 18158 apply.

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 http:// www .electropedia .org/
© ISO 2020 – All rights reserved 1
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SIST EN ISO 22065:2021
ISO 22065:2020(E)
4 Symbols and abbreviated terms

For the purposes of this document, the following symbols and abbreviations apply.

NOTE See 8.4 and Annex C for symbols used in conjunction with uncertainty of measurement only.

CRM certified reference material
LV limit value
m mass of analyte desorbed from tube blank, in micrograms (µg)
m mass of analyte desorbed from spiked tube, in micrograms (µg)

m maximum mass uptake of analyte in a leak test performed on a sealed sampler used for

a,lt

making measurements for comparison with a long-term limit value, in milligrams (mg)

m maximum mass uptake of analyte in a leak test performed on a sealed sampler used for

a,st

making measurements for comparison with a short-term limit value, in milligrams (mg)

m mass loss from permeation tube, in micrograms per minute (µg ∙ min )
M molar mass of analyte, in grams per mole (g ∙ mol )
n number of replicate samples
p pressure of the test atmosphere sampled, in kilopascals (kPa)
R method recovery
R analytical recovery
RH relative humidity of the test atmosphere sampled, in percent (%)
t hold-up time of the unretained substance, in minutes (min)
t sampling time, in minutes (min)
T temperature of the test atmosphere sampled, in Kelvins (K)
V volume of the test atmosphere sampled, in litres (l)
V gas (vapour) hold-up volume (dead volume), in litres (l)
V uncorrected retention volume, in litres (l)
(V )′ corrected retention volume, in litres (l)

flow rate into the exposure chamber, for example, in litres per minute (l ∙ min )

v volumetric air flow rate through the sampler, for example, in litres per minute (l ∙ min )

β mass concentration of the analyte in the calibration gas mixture, in milligrams per cubic

metre (mg ∙ m )

mean mass concentration of the analyte recovered from the test gas atmosphere, in mil-

a,R
ligrams per cubic metre (mg ∙ m )
2 © ISO 2020 – All rights reserved
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SIST EN ISO 22065:2021
ISO 22065:2020(E)

β mass concentration of the calibration gas mixture, in milligrams per cubic metre

(mg ∙ m )
ϑ temperature of the test atmosphere sampled, in degrees Celsius (°C)
K coefficient of variation (CV)

NOTE The predecessor term "relative standard deviation" is deprecated. See also

ISO 3534-1:2006, 2.38, Note 2.

ρ long-term limit value given as concentration, in milligrams per cubic metre (mg ∙ m )

LV,lt

ρ short-term limit value given as concentration, in milligrams per cubic metre (mg ∙ m )

LV,st
ϕ volume fraction of the analyte, in microlitres per litre (µl ∙ l )
5 Sampler types

Samplers for gases and vapours can be divided into type A samplers and type B samplers:

— Type A samplers rely on sorption onto a collection substrate which can be impregnated with a

reagent. The collection substrate is always desorbed with a solvent, and subsequently analysed.

— Type B samplers rely on sorption onto a solid, thermal desorption, and analysis of the desorbate.

6 Requirements
6.1 General

Some requirements (see 6.2) shall be initially verified by the manufacturer once for each type of

sampler. Other requirements (see 6.3) shall be verified for each combination sampler/chemical agent.

Measuring procedures shall meet the requirements for measuring procedures specified in 6.3. When

use of a sampler for measurement of a particular gas or vapour is claimed, the sampler shall meet the

requirements specified in 6.2.

Known or suspected interferences shall be noted as required in 6.3.4.1. The results of any tests

performed to evaluate interferences, including suitable and sufficient information to minimize their

effects shall be presented in the method report as required in 6.3.4.2.

NOTE No useful performance requirements can be given for the effect of interferents (with the exception

of water vapour). The effect of interferents is difficult to predict for a non-ideal sorbent without adsorption

isotherm data on mixed systems which is normally unavailable.
6.2 Sampler requirements
6.2.1 Flow resistance

When tested in accordance with 8.2.1, at least 95 % of samplers shall have a back pressure less than the

appropriate maximum value indicated in Table 1. A minimum of 20 samplers shall be tested.

NOTE Typical back pressure values for type A samplers and type B samplers are given in [1].

© ISO 2020 – All rights reserved 3
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SIST EN ISO 22065:2021
ISO 22065:2020(E)
Table 1 — Maximum back pressures
Maximum back
Sampler type pressure
kPa
Type A (solvent desorption) ≤10
Type B (thermal desorption) ≤3,5
6.2.2 Sampler leak test (for Type B samplers)

When tested in accordance with 8.2.2, for substances with a long-term limit value the maximum

leakage, i.e. the maximum mass uptake of analyte above the blank value (see 6.3.2.3), shall be less than

m calculated according to Formula (1), in milligrams (mg), as follows:
a,lt
m =×01,,ρ 240××00110 (1)
a,lt LV,lt
where

m is the maximum mass uptake of analyte in a leak test performed on a sealed sampler used

a,lt
for making measurements for comparison with a long-term limit value;

ρ is the long-term limit value of the substance given as concentration, in milligrams per cubic

LV,lt
metre (mg ∙ m );
240 is the reference period, in minutes (min);

0,01 is the nominal minimum flow rate for type B samplers, in litres per minute (l ∙ min );

10 is a factor applied to convert the nominal minimum flow rate from litres per minute (l/min)

3 −1
to cubic metres per minute (m ∙ min );
1/3 is a factor applied to calculate the maximum permitted leakage.

When tested in accordance with 8.2.2, for substances with a short-term limit value the maximum

leakage, i.e. the maximum mass uptake of analyte above the blank value (see 6.3.2.3), shall be less than

m calculated according to Formula (2), in milligrams (mg), as follows:
a,st
m =×05,,ρ 15××00110 (2)
a,st LV,st
where

m is the maximum mass uptake of analyte in a leak test performed on a sealed sampler used

a,st
for making measurements for comparison with a short-term limit value;

ρ is the short-term limit value of the substance given as concentration, in milligrams per cubic

LV,st
metre (mg ∙ m );
15 is the reference period, in minutes (min);

0,01 is the nominal minimum flow rate for type B samplers, in litres per minute (l ∙ min );

10 is a factor applied to convert the nominal minimum flow rate from litres per minute

−1 3 −1
(l ∙ min ) to cubic metres per minute (m ∙ min );
1/3 is a factor applied to calculate the maximum permitted leakage.
4 © ISO 2020 – All rights reserved
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SIST EN ISO 22065:2021
ISO 22065:2020(E)
6.2.3 Shelf life

The manufacturer shall specify the shelf life of the sampler when stored in its original package. During

this period the sampler shall fulfil all requirements.
6.2.4 Sampler identification
Samplers shall be uniquely identified.
6.2.5 Marking
Samplers shall be marked with at least the following:
a) manufacturer’s name,
b) product identification including batch identification, where available,
c) indication of the direction of air flow,
d) shelf life (or expiry date), and
e) number of this document.

NOTE The marking with the number of this document implies only that the sampler fulfils the requirements

given in 6.2.

If required due to limited space, the marking may be placed on the packaging of the sampler. However,

at least the product identification, batch identification, where available, and direction of air flow shall

be indicated on the sampler.
6.2.6 Instructions for use

The instructions for use supplied with the sampler shall be written in the principal language(s) used in

the countries where the sampler is to be marketed. They shall contain at least the following information:

a) designated use (general purpose for a number of gases and vapours or, specific, for a particular gas

or vapour, see 6.1),

b) assurance that blank value meets specifications, where necessary for a particular gas or vapour,

(where a blank value is important),
c) directions for proper handling of the sampler, including opening and closing,

d) general information on the principle of use, for example, sorbent type, reaction of the reagent

impregnate
...

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