1、BSI Standards PublicationBS EN ISO 15957:2015Test dusts for evaluating aircleaning equipmentBS EN ISO 15957:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 15957:2015.The UK participation in its preparation was entrusted to Technical Committee MCE/21, F
2、ilters for gases and liquids.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution
3、 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 75739 6 ICS 91.140.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2015.Amendments/corrig
4、enda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15957 March 2015 ICS 91.140.30 English Version Test dusts for evaluating air cleaning equipment (ISO 15957:2015) Poussires dessai pour lvaluation des quipements dpuration dair (ISO 15957
5、:2015) Aufgabestube zum Prfen von Luftfilteranlagen (ISO 15957:2015) This European Standard was approved by CEN on 12 December 2014. 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 sta
6、ndard 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
7、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 Re
8、public, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPE
9、AN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15957:2015 EBS
10、 EN ISO 15957:2015EN ISO 15957:2015 (E) 3 Foreword This document (EN ISO 15957:2015) has been prepared by Technical Committee ISO/TC 142 “Cleaningequipment for air and other gases” in collaboration with Technical Committee CEN/TC 195 “Air filters forgeneral air cleaning” the secretariat of which is
11、held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by September 2015, and conflicting national standards shall bewithdrawn at the latest by September 2015. Attention is drawn to the possibil
12、ity that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followingcountries are bou
13、nd to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
14、Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 15957:2015 has been approved by CEN as EN ISO 15957:2015 without any modification. BS EN ISO 15957:2015ISO 15957:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative reference
15、s 13 Terms and definitions . 14 Test dusts designation 25 Chemical composition . 26 Particle size distribution . 27 Particle size analysis procedure . 37.1 L1 test dust . 37.2 L2 test dust . 37.3 L3 test dust . 37.4 L4 test dust . 38 Production methods . 38.1 L1 test dust . 38.2 L2 test dust . 38.3
16、L3 test dust . 38.4 L4 test dust . 49 Properties 49.1 L1 test dust . 49.2 L2 test dust . 49.3 L3 test dust . 49.4 L4 test dust . 410 Application . 410.1 General . 410.2 L1 test dust . 410.3 L2 test dust . 410.4 L3 test dust . 410.5 L4 test dust . 411 Related standards 511.1 L1 test dust . 511.2 L2 t
17、est dust . 511.3 L3 test dust . 511.4 L4 test dust . 512 Requirements for load test dust distribution 5Annex A (normative) Material safety . 6Annex B (informative) Literature review of mass size distribution of atmospheric aerosol particles . 7Annex C (informative) Comparison of particle size distri
18、butions . 8Bibliography 9 ISO 2015 All rights reserved iiiContents PageBS EN ISO 15957:2015ISO 15957:2015(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 no
19、rmally 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
20、 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 t
21、he 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 doc
22、ument 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.o
23、rg/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 ISOs adherence to the WTO
24、principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 142, Cleaning equipment for air and other gases.iv ISO 2015 All rights reservedBS EN ISO 15957:2015ISO 15957:2015(E)IntroductionFilters
25、 are subjected to evaluation of their initial performance and dust-loaded performance in laboratory tests using specified test dusts. The results are to reflect the performance of the filter as installed in a building. However, since the properties of atmospheric aerosols vary to a large extent regi
26、onally, seasonally, and according to weather conditions, test data obtained with a given test dust seldom accurately predict the filter performance as actually used. In addition to this, the test results with a given test dust might not be in agreement with those obtained by other laboratories becau
27、se the filter performance is affected by many factors such as particle size distribution, particle agglomeration, and electrical charge. Despite these problems in testing filter performance, the test data are used for the classification of filters, estimation of energy consumption, Life Cycle Cost (
28、LCC), and Life Cycle Assessment (LCA).The test dust used for evaluating initial performance and loaded performance of filters can have a different specification from the dust used to achieve filter loading.This International Standard does not control the specification, manufacturing, or use of test
29、dusts. It describes the properties of test dusts which can be used to load filters, and the requirements for test dust generation that will ensure that useful laboratory test results are obtained in order to mimic the actual use as much as possible. ISO 2015 All rights reserved vBS EN ISO 15957:2015
30、BS EN ISO 15957:2015Test dusts for evaluating air cleaning equipment1 ScopeThis International Standard defines the properties of load test dusts used for heating, ventilation, and air conditioning (HVAC) air filters as well as air cleaning equipment in laboratories. Test dusts used for evaluation of
31、 efficiency performance are not included.2 Normative referencesThe 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 updated references, the latest edition of the
32、referenced document (including any amendments) applies.ISO 12103-1, Road vehicles Test dust for filter evaluation Part 1: Arizona test dustISO/TS 21220, Particulate air filters for general ventilation Determination of filtration performance3 Terms and definitionsFor the purposes of this document, th
33、e following terms and definitions apply.3.1dust feederdevice which is used to distribute test dust to the filter3.2median diameterdiameter of the particle for which the cumulated volume fraction is equal to 50 % on a cumulated volume particle size distribution curve3.3undersizepercentage in volume o
34、f particles smaller than a specified particle size in a particle size distribution3.4particulate matterPMsize fraction of the natural aerosol (liquid and solid particles) suspended in ambient air, with the symbol PMx where x defines the size range of the aerodynamic diameterNote 1 to entry: The foll
35、owing particle size fractions are used in this International Standard.Fraction Category Size range mPM10 Thoracic fraction 10PM2,5 Respirable fraction 2,5Note 2 to entry: The collection efficiency of the correct equipment at the considered diameter is equal to 50 %.INTERNATIONAL STANDARD ISO 15957:2
36、015(E) ISO 2015 All rights reserved 1BS EN ISO 15957:2015ISO 15957:2015(E)4 Test dusts designationLoad test dusts belong to one of four categories, according to the composition, the particle median diameter, and the particle density as shown in Table 1.Table 1 Load test dustsCategories CompositionMe
37、dian diametermDensityg/cm3L1Mixture of: A rizona desert sand 72 %aConforms to ISO 12103-1, A2 Conforms to ISO 12103-1, A2 C arbon 23 % Not defined Not defined M illed Cotton linters 5 % Not defined Not defined L2 Arizona desert sandaConforms to ISO 12103-1, A2 Conforms to ISO 12103-1, A2L3 KANTO loa
38、m (sintered) 1,72,5 2,93,1 (for reference)L4Mixture of: Arizona desert sanda93,5 % Conforms to ISO 12103-1, A2 Conforms to ISO 12103-1, A2 M illed cotton linters 6,5 % Not defined Not defined L1 test dust is the same as the commercially available dust used for ANSI/ASHRAE Standard 52.2 testing. The
39、details conform to the description of the standard.L2 test dust is the same as ISO 12103-1, A2 Arizona test dust. The details conform to the description of the standard.L3 test dust is the same as SAP14-12 Test Powders 3-3. The details conform to the description of the standard (SAP: Standard of Ass
40、ociation of Powder Process Industry and Engineering, Japan).L4 test dust is the same as ANSI/AHRI 680. The details conform to the description of the standard.aSee ISO 12103-1.5 Chemical compositionThe chemical composition of each test dust shall meet the requirements of Table 2.Table 2 Chemical comp
41、osition (mass fraction, %)L1 L2 L3 L4ISO 12103-1, A272 %Conforms to ISO 12103-1, A2SiO234 to 40ISO 12103-1, A293,5 %AI2O326 to 32Fe2O317 to 23Carbon black23 %CaO 0 to 3Milled cotton linters6,5 %MgO 0 to 7Milled cotton linters5 %TiO20 to 4Loss on ignition 0 to 46 Particle size distributionThe particl
42、e size distributions of L1, L2, and L4 test dust conform to ISO 12103-1, A2 for the Arizona desert sand component of the mixture. The carbon black and cotton linters conform to ANSI/ASHRAE Standard 52.2 testing.The particle size distribution of L3 test dust shall meet the requirements of Table 3.2 I
43、SO 2015 All rights reservedBS EN ISO 15957:2015ISO 15957:2015(E)Table 3 Particle size distribution of L3 test dustUndersize,volume fraction (%)Particle size, mMinimum Maximum10 0,89 1,320 1,2 1,730 1,4 2,040 1,5 2,350 1,7 2,560 1,8 2,770 2,0 2,980 2,4 3,590 2,9 4,27 Particle size analysis procedure7
44、.1 L1 test dustThe particle size analysis procedure conforms to ISO 12103-1, A2 for the Arizona desert sand component of the mixture. There is no particle size analysis procedure for the carbon black and cotton linters components.7.2 L2 test dustThe particle size analysis procedure conforms to ISO 1
45、2103-1, A2.7.3 L3 test dustThe particle size analysis procedure conforms to SAP14-12 Test Powders 3. Laser diffraction scattering is used for the measurement. For the measuring device and the measurement conditions, the specification approved by the test dust supplier, APPIE (Association of Powder P
46、rocess Industry and Engineering, Japan) is used.7.4 L4 test dustThe particle size analysis procedure conforms to ISO 12103-1, A2 for the Arizona desert sand component of the mixture. There is no particle size analysis procedure for the cotton linters component.8 Production methods8.1 L1 test dustThi
47、s test dust is produced by mixing the three components listed in Table 1. The detailed procedure conforms to ANSI/ASHRAE Standard 52.2.8.2 L2 test dustThis test dust is collected from a selected area of Arizona desert, jet-milled and classified to the specified particle size.8.3 L3 test dustKANTO lo
48、am is sintered for two hours, jet-milled and classified to the specified particle size. ISO 2015 All rights reserved 3BS EN ISO 15957:2015ISO 15957:2015(E)8.4 L4 test dustThis test dust is produced by mixing the two components listed in Table 2. The detailed procedure conforms to ANSI/AHRI Standard
49、680.9 Properties9.1 L1 test dustThis mixture of three components has been used for many years in testing air cleaning equipment. The mixture properties can vary depending on the supplier and on conditions of storage and transportation.9.2 L2 test dustThis test dust contains coarse particles, but with very few larger than 100m. The adhesive force is small so that the particles are easily re-suspended. This particle mixture generally gives a small pressure drop increase when loaded on a filter, leading to a large consumption
