1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 16000-25:2011Indoor airPart 25: Determination of the emissionof semi-volatile organic compounds bybuilding products Micro-chambermethodBS ISO 16000-25:2011 BRITISH STANDAR
2、DNational forewordThis British Standard is the UK implementation of ISO16000-25:2011.The UK participation in its preparation was entrusted to TechnicalCommittee EH/2/3, Ambient atmospheres.A list of organizations represented on this committee can beobtained on request to its secretary.This publicati
3、on does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 63474 1ICS 13.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authori
4、ty of theStandards Policy and Strategy Committee on 31 August 2011.Amendments issued since publicationDate Text affectedBS ISO 16000-25:2011Reference numberISO 16000-25:2011(E)ISO 2011INTERNATIONAL STANDARD ISO16000-25First edition2011-07-01Indoor air Part 25: Determination of the emission of semi-v
5、olatile organic compounds by building products Micro-chamber method Air intrieur Partie 25: Dosage de lmission de composs organiques semi-volatils des produits de construction Mthode de la micro-chambre BS ISO 16000-25:2011ISO 16000-25:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserve
6、d. Unless 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
7、. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedBS ISO 16000-25:2011ISO 16000-25:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Int
8、roduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Symbols4 5 Principle4 6 Micro-chamber system .4 7 Apparatus and materials.8 8 Test conditions 8 9 Verification of test conditions9 10 Test specimens10 11 Micro-chamber preparation10 12 Test method .10 13 Calculation of area sp
9、ecific emission rates and expression of results.11 14 Performance characteristics 11 15 Test report11 Annex A (normative) System for quality assurance and quality control (QA/QC).13 Annex B (informative) Examples of micro-chambers and procedure .15 Annex C (informative) Example of a method of micro-
10、chamber recovery measurement .19 Annex D (informative) Selection of test specimens 21 Bibliography23 BS ISO 16000-25:2011ISO 16000-25:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO m
11、ember 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, governm
12、ental 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Dir
13、ectives, Part 2. The main task of technical committees is to prepare International Standards. Draft International 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 bo
14、dies casting a vote. 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. ISO 16000-25 was prepared by Technical Committee ISO/TC 146, Air quality, Subcom
15、mittee SC 6, Indoor air. ISO 16000 consists of the following parts, under the general title Indoor air: Part 1: General aspects of sampling strategy Part 2: Sampling strategy for formaldehyde Part 3: Determination of formaldehyde and other carbonyl compounds in indoor air and test chamber air Active
16、 sampling method Part 4: Determination of formaldehyde Diffusive sampling method Part 5: Sampling strategy for volatile organic compounds (VOCs) Part 6: Determination of volatile organic compounds in indoor and test chamber air by active sampling on Tenax TAsorbent, thermal desorption and gas chroma
17、tography using MS or MS-FID Part 7: Sampling strategy for determination of airborne asbestos fibre concentrations Part 8: Determination of local mean ages of air in buildings for characterizing ventilation conditions Part 9: Determination of the emission of volatile organic compounds from building p
18、roducts and furnishing Emission test chamber method Part 10: Determination of the emission of volatile organic compounds from building products and furnishing Emission test cell method Part 11: Determination of the emission of volatile organic compounds from building products and furnishing Sampling
19、, storage of samples and preparation of test specimens Part 12: Sampling strategy for polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polycyclic aromatic hydrocarbons (PAHs) BS ISO 16000-25:2011ISO 16000-25:2011(E) ISO 2011 All r
20、ights reserved v Part 13: Determination of total (gas and particle-phase) polychlorinated dioxin-like biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/PCDFs) Collection on sorbent-backed filters Part 14: Determination of total (gas and particle-phase) polychlorinated dioxi
21、n-like biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/PCDFs) Extraction, clean-up and analysis by high-resolution gas chromatography and mass spectrometry Part 15: Sampling strategy for nitrogen dioxide (NO2) Part 16: Detection and enumeration of moulds Sampling by filtr
22、ation Part 17: Detection and enumeration of moulds Culture-based method Part 18: Detection and enumeration of moulds Sampling by impaction Part 19: Sampling strategy for moulds Part 23: Performance test for evaluating the reduction of formaldehyde concentrations by sorptive building materials Part 2
23、4: Performance test for evaluating the reduction of volatile organic compound (except formaldehyde) concentrations by sorptive building materials Part 25: Determination of the emission of semi-volatile organic compounds by building products Micro-chamber method Part 26: Sampling strategy for carbon
24、dioxide (CO2) Part 28: Determination of odour emissions from building products using test chambers The following parts are under preparation: Part 21: Detection and enumeration of moulds Sampling from materials Part 27: Determination of settled fibrous dust on surfaces by SEM (scanning electron micr
25、oscopy) (direct method) Part 29: Test methods for VOC detectors Part 30: Sensory testing of indoor air Part 31: Measurement of flame retardants and plasticizers based on organophosphorus compounds Phosphoric acid ester Part 32: Investigation of constructions on pollutants and other injurious factors
26、 Inspections BS ISO 16000-25:2011ISO 16000-25:2011(E) vi ISO 2011 All rights reservedIntroduction The determination of semi-volatile organic compounds (SVOCs) emitted from building products using micro-chambers in conjunction with standardized sampling, storage of samples and preparation of test spe
27、cimens aims, for example, to: provide manufacturers, builders, and end-users with emission data useful for the evaluation of the impact of building products on the indoor air quality; promote the development of improved products. The measurement method specified in this part of ISO 16000 is applicab
28、le to products used in construction such as board materials, wallpapers, flooring materials, insulation materials, adhesives, paints, and their combinations. SVOCs such as phthalic esters are found in many construction materials. If emitted into the indoor environment they adhere to many surfaces an
29、d can become a persistent indoor air contaminant. This part of ISO 16000 specifies a test procedure for measuring SVOC emissions from construction products and materials. This method can, in principle, be used for most building products used indoors. ISO 1601767and ISO 1221915also focus on volatile
30、organic compound (VOC) measurements. BS ISO 16000-25:2011INTERNATIONAL STANDARD ISO 16000-25:2011(E) ISO 2011 All rights reserved 1Indoor air Part 25: Determination of the emission of semi-volatile organic compounds by building products Micro-chamber method 1 Scope This part of ISO 16000 specifies a
31、 test method for determination of the area-specific emission rate of semi-volatile organic compounds (SVOCs) from newly produced building products or furnishings under defined climate conditions using a micro-chamber. The method can in principle also be applied to aged products. This measurement met
32、hod is applicable to products and materials, such as board materials, wallpapers, flooring materials, insulation materials, adhesives, paints, and their combinations. Sampling, transport and storage of materials to be tested, and preparation of test specimens are specified in ISO 16000-11. Air sampl
33、ing and analytical methods for the determination of SVOCs are specified in ISO 16000-6 and ISO 16017-1. An example of a micro-chamber is described in Annex B. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only
34、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 554, Standard atmospheres for conditioning and/or testing Specifications ISO 16000-6, Indoor air Part 6: Determination of volatile organic compounds in indoor and
35、test chamber air by active sampling on Tenax TAsorbent, thermal desorption and gas chromatography using MS or MS-FID 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 tes
36、t specimens ISO 16017-1, Indoor, ambient and workplace air Sampling and analysis of volatile organic compounds by sorbent tube/thermal desorption/capillary gas chromatography Part 1: Pumped sampling 3 Terms and definitions For the purposes of this document, the following terms and definitions apply.
37、 3.1 air change rate for micro-chamber n ratio of the volume of clean air brought into the micro-chamber per hour and the free micro-chamber volume measured in identical units BS ISO 16000-25:2011ISO 16000-25:2011(E) 2 ISO 2011 All rights reserved3.2 air flow rate for micro-chamber qV,cair volume en
38、tering into the micro-chamber per time 3.3 air velocity air speed over the surface of the test specimen ISO 16000-9:2006, 3.3 3.4 area specific air flow rate qVAratio between the supply air flow rate and the area of the test specimen ISO 16000-9:2006, 3.4 3.5 area specific emission rate for SVOC qmA
39、building product specific rate describing the mass of a substance emitted from an exposed area per time at a given time from the start of the test NOTE 1 For the purposes of this part of ISO 16000, the emission consists of SVOC. NOTE 2 The term “area specific emission rate” is sometimes used in para
40、llel with the term “emission factor”. 3.6 building product product produced for incorporation in a permanent manner in construction works ISO 16000-9:2006, 3.5 3.7 field blank mt0SVOC emission from building products mass of SVOC in the sorbent tube when all operations except air sampling are perform
41、ed NOTE Used in order to consider contamination originating from the sorbent tube itself and contamination originating in opening, closing, and transportation. 3.8 inert gas gas without active chemical or other properties NOTE Normally, helium (He) gas or nitrogen (N2) is used as the gas for thermal
42、 desorption (TD) of SVOC adsorbed in the micro-chamber (see Reference 8). 3.9 mass collected in control test m0sum of mass during first and second steps of test without introducing specimen 3.10 mass collected in first step m1mass of SVOC sampled and measured at the micro-chamber outlet, which are e
43、mitted and not absorbed in the micro-chamber BS ISO 16000-25:2011ISO 16000-25:2011(E) ISO 2011 All rights reserved 33.11 mass collected in second step m2mass of SVOC sampled and measured at the micro-chamber outlet when thermal desorption is performed 3.12 micro-chamber container enabling control of
44、 conditions for measurement of SVOC emissions from building materials NOTE Micro-chambers typically range in volume as described in B.1. 3.13 recovery measured mass of a target semi-volatile organic compound in the air leaving the micro-chamber during thermal desorption (second step) divided by the
45、mass of target semi-volatile organic compound added to the micro-chamber NOTE 1 Recovery is expressed as a percentage. NOTE 2 The recovery provides information about the performance of the entire method. 3.14 sample part or piece of a building product that is representative of the production ISO 160
46、00-9:2006, 3.10 3.15 sampling period duration over which a sample is taken NOTE The sampling period is the time during which air is sampled from the outlet of the micro-chamber using sorbent tubes or other devices. 3.16 semi-volatile organic compound SVOC organic compound whose boiling point is in t
47、he range from (240 C to 260 C) to (380 C to 400 C) NOTE 1 This classification has been defined by the World Health Organization (Reference 9). NOTE 2 Boiling points of some compounds are difficult or impossible to determine because they decompose before they boil at atmospheric pressure. Vapour pres
48、sure is another criterion for classification of compound volatility that can be used for classification of organic chemicals. SVOCs have vapour pressures between 102mPa and 10 Pa. 3.17 sorbent tube blank value of SVOC in the sorbent tube itself before air sampling 3.18 target semi-volatile organic c
49、ompound product specific semi-volatile organic compound 3.19 test specimen SVOC emission from building products part of the sample specially prepared for emission testing in a micro-chamber cell in order to simulate the emission behaviour of the material or product that is tested BS ISO 16000-25:2011ISO 16000-25:2011(E) 4 ISO 2011 All rights reserved3.20 test start time of placing the test specimen
