BS ISO 12219-3-2012 Interior air of road vehicles Screening method for the determination of the emissions of volatile organic compounds from vehicle interior parts and materials Mi.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 12219-3:2012Interior air of road vehiclesPart 3: Screening method for thedetermination of the emissions of volatileorganic compounds from vehicle interiorparts and materia

2、ls Micro-scale chambermethodBS ISO 12219-3:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 12219-3:2012.The UK participation in its preparation was entrusted to TechnicalCommittee EH/2/3, Ambient atmospheres.A list of organizations represented on this comm

3、ittee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 72178 6ICS 13.040.20

4、; 43.020Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2012.Amendments issued since publicationDate Text affectedBS ISO 12219-3:2012 ISO 2012Interior air

5、of road vehicles Part 3: Screening method for the determination of the emissions of volatile organic compounds from vehicle interior parts and materials Micro-scale chamber methodAir intrieur des vhicules routiers Partie 3: Mthode de criblage pour la dtermination des missions de composs organiques v

6、olatils des parties et matriaux intrieurs des vhicules Mthode de la micro-chambreINTERNATIONAL STANDARDISO12219-3First edition2012-06-15Reference numberISO 12219-3:2012(E)BS ISO 12219-3:2012ISO 12219-3:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Un

7、less otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO

8、copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 12219-3:2012ISO 12219-3:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13

9、Terms and definitions . 24 Principle . 25 Apparatus 26 Test conditions . 36.1 Temperature 46.2 Air or gas flow rate through the micro-scale chamber . 46.3 Quality of supplied air or gas and background concentration of organic vapours 46.4 Control measures 47 Test specimens 47.1 General . 47.2 Prepar

10、ation of the test specimen 58 Cleaning micro-scale chamber components . 59 Test method 59.1 Sampling media . 59.2 Measuring background concentrations 69.3 Vapour sampling 69.4 Sealing the vapour sampling devices after gas sample collection . 69.5 Analysis of vapour sampling devices 69.6 Storage of t

11、he test specimen between emissions tests (if required) 69.7 Cleaning the micro-scale chamber after use . 610 Calculation of vapour concentrations and specific emission rates 711 Test report . 812 Quality assurance/quality control . 9Annex A (informative) Micro-scale chamber principles .10Annex B (in

12、formative) Micro-scale chamber Example 1 .12Annex C (informative) Micro-scale chamber Example 2 .14Annex D (informative) Micro-scale chamber Example 3 .16Annex E (informative) Assessment of VOC recoveries 18Annex F (informative) Calculation of specific emission rates from micro-scale chamber air con

13、centration .19Bibliography .21BS ISO 12219-3:2012ISO 12219-3:2012(E)ForewordISO (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

14、 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

15、 the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft Internat

16、ional Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be

17、the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 12219-3 was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 6, Indoor air, in collaboration with Technical Committee ISO/TC 22, Road vehicles.ISO 12219 consists

18、of the following parts, under the general title Interior air of road vehicles: Part 1: Whole vehicle test chamber Specification and method for the determination of volatile organic compounds in cabin interiors Part 2: Screening method for the determination of the emissions of volatile organic compou

19、nds from vehicle interior parts and materials Bag method Part 3: Screening method for the determination of the emissions of volatile organic compounds from vehicle interior parts and materials Micro-scale chamber method Part 4: Screening method for the determination of the emissions of volatile orga

20、nic compounds from vehicle interior parts and materials Small chamber methodThe following part is under preparation: Part 5: Screening method for the determination of the emissions of volatile organic compounds from vehicle interior parts and materials Static chamber methodiv ISO 2012 All rights res

21、ervedBS ISO 12219-3:2012ISO 12219-3:2012(E)IntroductionVolatile organic compounds (VOCs) are widely used in industry and may be emitted by many everyday products and materials. They have attracted attention in recent years because of their impact on indoor air quality. After homes and workplaces, pe

22、ople spend a lot of time in their vehicles. It is important to determine the material emissions of interior parts and to reduce them to an acceptable level, if required. Therefore it is necessary to obtain comprehensive and reliable information about the types of organic compounds in the interior ai

23、r of vehicles and also their concentrations.Monitoring emissions from vehicle trim components can be performed in several ways and the approach selected depends upon the desired outcome and the material type. For example, to obtain emissions data from complete assemblies (e.g. a dashboard or seat),

24、it is necessary to employ emissions chambers or bags that have sufficient volume to house the complete assembly (typically 1 m3). Such tests may take several hours or even days to perform, depending on specified equilibration times and the requirements of the relevant test protocol.This part of ISO

25、12219 outlines a method of measuring the types and levels of VOCs emitted using micro-scale chambers (References 24). These allow qualitative and semiquantitative screening of product emissions after only minutes, rather than hours or days, of equilibration. Their capacity is limited so they are bes

26、t suited to small assemblies or representative samples of homogeneous vehicle interior parts and materials. Multiple test specimens can also be readily evaluated from the same sample if required. Micro-scale chambers can provide an ideal quick screening tool for quality control of production and oth

27、er in-house tests by manufacturers. They offer a complementary approach to large chamber or sampling bag approaches.ISO 16000-3, ISO 16000-5,5ISO 16000-6, ISO 16000-9,6ISO 16000-10,7ISO 16000-11,8ISO 16000-24,9ISO 16000-25,10as well as ISO 16017-111and ISO 16017-2,12 also focus on VOC measurements.

28、ISO 2012 All rights reserved vBS ISO 12219-3:2012BS ISO 12219-3:2012Interior air of road vehicles Part 3: Screening method for the determination of the emissions of volatile organic compounds from vehicle interior parts and materials Micro-scale chamber methodWARNING It is the responsibility of the

29、user of this part of ISO 12219 to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. National regulations for precautions shall be followed.1 ScopeThis part of ISO 12219 specifies a fast, qualitative and semiquantitative screenin

30、g method for vapour-phase organic compounds (volatile and some semi-volatile) released from vehicle trim materials under simulated real-use conditions using micro-scale test chambers. This method is intended for evaluating new car interior trim components but can, in principle, also be applied to us

31、ed car components.Target analytes include VOCs (conventionally defined as organic compounds in the volatility range of n-hexane to n-hexadecane) and volatile carbonyl compounds such as formaldehyde. The specified analytical procedure for VOCs is ISO 16000-6 and for formaldehyde and some other light

32、carbonyl compounds is ISO 16000-3.NOTE 1 Some compounds more volatile than n-hexane and less volatile than n-hexadecane can also be analysed (for more information, see: ISO 16000-6:2011, Annex D; ISO 16017-1;11and Annex E).NOTE 2 For dry, homogeneous materials, results from tests of volatile organic

33、 emissions carried out using micro-scale chambers on newly manufactured products have been found to correlate well with data obtained using standard (reference) methods and conventional emission test chambers (ISO 12219-4, VDA 2761and ISO 16000-96) or test cells (ISO 16000-107). Correlation with emi

34、ssion data obtained using bags (ISO 12219-2) has also been reported. The practice specified in this part of ISO 12219 is therefore complementary to existing standards.This part of ISO 12219 provides third party test laboratories and manufacturing industry with a cost-effective approach for:a) monito

35、ring and screening VOC emissions as part of routine quality control;b) monitoring product uniformity or conformity between formal certification tests;c) comparing emissions from products within a range (e.g. different colours or patterns);d) evaluating prototype, “low-emission” materials or products

36、 during development.NOTE 3 All volatile carbonyl compounds except formaldehyde can be analysed according to ISO 16000-6.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated r

37、eferences, the latest edition of the referenced document (including any amendments) applies.ISO 12219-1, Interior air of road vehicles Part 1: Whole vehicle test chamber Specification and method for the determination of volatile organic compounds in cabin interiorsISO 16000-3:2011, Indoor air Part 3

38、: Determination of formaldehyde and other carbonyl compounds Active sampling methodINTERNATIONAL STANDARD ISO 12219-3:2012(E) ISO 2012 All rights reserved 1BS ISO 12219-3:2012ISO 12219-3:2012(E)ISO 16000-6:2011, Indoor air Part 6: Determination of volatile organic compounds in indoor and test chambe

39、r air by active sampling on Tenax TAsorbent, thermal desorption and gas-chromatography using MS or MSFID3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 16000-6, ISO 12219-1 and the following apply.3.1vehicle trim componentvehicle interior part or mate

40、rial4 PrincipleThe principle of the test is to determine the area (or mass) specific emission rate of VOCs emitted from automotive products. The test is performed in a micro-scale test chamber at a constant temperature and flow rate. The surface area (or mass) of the sample in the micro-scale test c

41、hamber is constant and, by measuring the mass or vapour-phase concentrations of emitted compounds, the area (or mass) specific emission rates of VOCs from the product under test can be determined at a given time, t (see Clause 10).The results can be used to assess product performance with respect to

42、 emission levels either by comparison with control levels or by comparing the data with results from other products or batches of product.5 Apparatus5.1 General. General specifications and requirements, which apply to all types of micro-scale chambers, are given in 5.1 to 5.5. General micro-scale ch

43、amber principles are also summarized in Annex A and specific micro-scale chamber examples are given in Annexes B to D.The following key micro-scale chamber components are required: micro-scale chamber apparatus; heating mechanism; clean gas supply and optional humidification system,NOTE Most samples

44、 contain sufficient inherent humidity to facilitate formaldehyde screening, according to ISO 16000-3, over the short duration of a micro-scale chamber test. Therefore humidification is normally not required for this screening method. appropriate monitoring and control systems (to ensure that the tes

45、t is carried out according to specified conditions); appropriate vapour sampling tubes.5.2 Micro-scale chamber apparatus construction materials. Micro-scale test chambers range in size from 30 cm3to 1 l (e.g. 44,5 ml, see Annex B). They are designed to operate at ambient or elevated temperatures and

46、 to permit the testing of vapour-phase organic emissions from various types of vehicle interior trim components, construction products, and consumer goods.The micro-scale chamber apparatus can comprise one or multiple sealable, micro-scale chambers constructed of inert, non-emitting and non-absorbin

47、g materials, such as surface-treated (polished) or inert coated stainless steel or deactivated glass or quartz. In all cases, the requirements specified in 5.4 and 5.5 shall be fulfilled.Any sealing materials e.g. gaskets or O-rings used for sealing the doors or lids of micro-scale chambers, shall b

48、e low emitting and low absorbing and shall not contribute significantly to the background vapour concentration. The O-rings or gaskets shall be easily removed to facilitate cleaning or replacement. The micro-scale chambers shall be easily dismantled and removed from any housings to facilitate cleani

49、ng as specified in Clause 8.2 ISO 2012 All rights reservedBS ISO 12219-3:2012ISO 12219-3:2012(E)5.3 Heating. The micro-scale chambers shall be capable of heating the test specimen to a uniform prescribed temperature for the duration of the test. The temperature shall be maintained within 2 C throughout the entire procedure (see also 6.1).To facilitate cleaning (see Clause 8) the micro-scale test chamber should be capable of being heated to 100 C or more.5.4 Air or gas sup