ISO 17299-4:2015
(Main)Textiles — Determination of deodorant property — Part 4: Condensation sampling analysis
Textiles — Determination of deodorant property — Part 4: Condensation sampling analysis
ISO 17299-4:2014 specifies a deodorant testing method using analytical instruments after using condensation sampling methods for all textile products. This method is applicable to gaseous odour chemicals, such as indole, methyl mercaptan, hydrogen sulfide, isovaleric acid, and nonenal.
Textiles — Détermination des propriétés de neutralisation d'odeurs — Partie 4: Analyse par condensation d'échantillonnage
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 17299-4
First edition
2015-01-15
Textiles — Determination of
deodorant property —
Part 4:
Condensation sampling analysis
Textiles — Détermination des propriétés du déodorant —
Partie 4: Analyse par condensation d’échantillonnage
Reference number
ISO 17299-4:2015(E)
©
ISO 2015
---------------------- Page: 1 ----------------------
ISO 17299-4:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 17299-4:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus and materials. 2
7 Test method . 3
7.1 Sampling of test specimen . 3
7.2 Preparation of container . 4
7.3 Preparation of odour chemical solution or master gas . 4
7.4 Testing procedure . 4
7.4.1 Take three specimens from the sample for one test as shown in Table 1. . 4
7.5 Measurement of odour gas concentration . 6
7.5.1 General. 6
7.6 Testing without specimen . 6
8 Calibration . 6
9 Test result . 6
9.1 Calculation of the concentration of the odour chemical . 6
9.2 Calculation of reduction rate for odour chemical . 7
10 Test report . 7
Annex A (informative) Actual application of the thermal desorption GC-MS to the
measurement of indole, isovaleric acid, and nonenal . 8
Annex B (informative) Actual application of ion chromatography to the measurement of
hydrogen sulfide .15
Annex C (informative) Actual application of ion chromatography to the measurement of
methyl mercaptan .19
Annex D (informative) Practical example .22
© ISO 2015 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 17299-4:2015(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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 38, Textiles.
ISO 17299 consists of the following parts, under the general title of Textiles — Determination of
deodorant property
— Part 1: General principle
— Part 2: Detector tube method
— Part 3: Gas chromatography method
— Part 4: Condensation sampling analysis
— Part 5: Metal-oxide semiconductor sensors method
iv © ISO 2015 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 17299-4:2015(E)
Introduction
This part of ISO 17299 describes condensation sampling analyses to measure the very low concentration
of the odour chemicals which is assumed at the level of human olfactory perception threshold.
© ISO 2015 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 17299-4:2015(E)
Textiles — Determination of deodorant property —
Part 4:
Condensation sampling analysis
1 Scope
This part of ISO 17299 specifies a deodorant testing method using analytical instruments after using
condensation sampling methods for all textile products. This method is applicable to gaseous odour
chemicals, such as indole, methyl mercaptan, hydrogen sulfide, isovaleric acid, and nonenal.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 17299-1, Textiles — Determination of deodorant property — Part 1: General principle
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1
condensation sampling
method for collecting gaseous odour chemicals at very low concentration levels, which are then
condensed by analytical methods to higher concentration levels to facilitate detections of the chemicals
4 Principle
The concentration of a gaseous odour chemical in a container with or without a textile specimen after
a designated elapsed time is measured by instrumental devices. The reduction rate of concentration of
gaseous odour chemicals is calculated from the difference of average concentration data obtained from
the container with specimen and from that without specimen. The test shall be done for each chemical
individually.
5 Reagents
Unless otherwise specified, analytical grade reagents are used.
5.1 Ethanol, reagent with concentration of 99,5 %.
5.2 Odour chemicals.
5.2.1 Indole (C H N), reagent.
8 7
5.2.2 Methyl mercaptan, at a certified concentration of 2,0 μl/l ± 3 % in nitrogen diluent.
5.2.3 Hydrogen sulfide (H S), at a certified concentration of 2,0 μl/l ± 3 % in nitrogen diluent.
2
© ISO 2015 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO 17299-4:2015(E)
5.2.4 Isovaleric acid [(CH ) CHCH COOH], reagent with a purity of 98,0 %.
3 2 2
5.2.5 Nonenal (C H O), reagent with a concentration of 95,0 % in ethanol solution.
9 16
5.3 Diluent gas, nitrogen gas from nitrogen gas cylinder with a purity of at least 99,99 %.
6 Apparatus and materials
6.1 Plastic bags, with a volume of 3 l, at least six plastic bags for one test (see ISO 17299-1).
6.2 Micro syringe, capable of delivering 10 μl of solution by an accuracy of ±0,1 μl.
6.3 Heat sealer, used to seal open edge of plastic bag. The adhesive tape can be used as an alternative.
NOTE A sealing attachment such as a linear binder can be used.
6.4 Aspirator or vacuum pump, capable of evacuating remaining air from 3 l sealed plastic bag (refer
to Figure 1, item 1).
6.5 Adsorption tube, capable of being mounted on a thermal desorption instrument, and
absolving condensed samples of testing chemicals.
6.6 Thermal desorption instrument, capable of mounting an adsorption tube and baking it for
cleaning at a temperature over 280 °C with flow of inert gas.
6.7 Impinger, capable of putting absorbing solution and condensing odour chemical of the gas sample
supplied from the plastic bag (refer to Figure 1, item 2).
6.8 Air pump, capable of drawing approximately 0,2 l per minute of a sample gas from a plastic bag
into adsorption tube, impinger, etc. (refer to Figure 1, item 3).
2 © ISO 2015 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 17299-4:2015(E)
7.2 Preparation of container
7.2.1 Prepare six plastic bags with the capacity of 3 l, three plastic bags for testing with a specimen and
three plastic bags for the control test without a specimen. Place adhesive tape on the plastic bag at the
insertion point of the odour chemical.
NOTE The capacity of plastic bag is 3 l for all testing methods.
7.2.2 Clean the plastic bags used in this test using nitrogen gas or clean air, more than five times of
taking gas in and out by filling gas of the plastic bag volume just before testing.
7.3 Preparation of odour chemical solution or master gas
Perform the test for each odour chemical independently. Prepare the odour chemical solutions for the
testing as indicated below.
7.3.1 Indole solution.
Dissolve 0,6 g of the indole reagent (5.2.1) in 100 ml of ethanol (5.1).
7.3.2 Methyl mercaptan
Prepare the master gas with 1 μl/l of methyl mercaptan concentration by using the standard methyl
mercaptan gas (5.2.2) and diluent gas (5.3).
7.3.3 Hydrogen sulfide
Prepare the master gas with 0,2 μl/l of hydrogen sulfide concentration by using the standard hydrogen
sulfide gas (5.2.3) and diluent gas (5.3).
7.3.4 Isovaleric acid.
7.3.4.1 Dilute isovaleric acid reagent (5.2.4) of 5 ml and make up to 100 ml by ethanol (5.1).
7.3.4.2 Dilute the diluted solution of 1 ml and make up to 100 ml by ethanol (5.1).
7.3.5 Nonenal.
7.3.5.1 Dilute nonenal reagent (5.2.5) of 3,5 ml and make up to 100 ml by ethanol (5.1).
7.3.5.2 Dilute the diluted solution of 0,6 ml and make up to 100 ml by ethanol (5.1).
Perform the test for each odour chemical separately.
7.4 Testing procedure
This is a test with specimens.
7.4.1 Take three specimens from the sample for one test as shown in Table 1.
7.4.2 Place the specimens in the plastic bag one by one, so as to spread them out as much as possible.
See Figure 2.
NOTE Curling and creasing of specimen might be unavoidable.
4 © ISO 2015 – All rights reserved
---------------------- Page: 8 ----------------------
ISO 17299-4:2015(E)
Figure 2 — Specimen in a plastic bag
7.4.3 Hold the specimen by clips from outside of bag to make easier operation. Then, seal the opened
edge of the bag for insertion of specimen by using heat sealer (6.3).
7.4.4 Deaerate from the plastic bag as much as possible by using an aspirator or a vacuum pump (6.4).
7.4.5 Insert 2,5 l of nitrogen gas or the odour testing gas prepared. Then, add the odour testing solu
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.