1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 10121-2:2013T e s t m e t h o d s f o r a s s e s s i n g the performance of gas-phase air cleaning media and devices for general ventilationPart 2: Gas-phase air clean
2、ing devices (GPACD)BS EN ISO 10121-2:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 10121-2:2013.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e M C E / 2 1 / 3 , A i r f i l t e r s o t h e r t h a n f o r
3、a i r supply for I.C. engines and compressors.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 Stan
4、dards Institution 2013. Published by BSI Standards Limited 2013.ISBN 978 0 580 69633 6 ICS 91.140.30 Compliance with a British Standard cannot confer immunityfrom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2013
5、.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10121-2 April 2013 ICS 91.140.30 English Version Test methods for assessing the performance of gas-phase air cleaning media and devices for general ventilation - Part 2: Gas-phase
6、 air cleaning devices (GPACD) (ISO 10121-2:2013) Mthodes dessai pour lvaluation de la performance des mdias et des dispositifs de filtration molculaire pour la ventilation gnrale - Partie 2: Dispositifs de filtration molculaire (GPACD) (ISO 10121-2:2013) Methode zur Leistungsermittlung von Medien un
7、d Vorrichtungen zur Reinigung der Gasphase fr die allgemeine Lftung - Teil 2: Einrichtungen zur Reinigung der Gasphase (ISO 10121-2:2013) This European Standard was approved by CEN on 1 March 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditio
8、ns 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
9、 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 standard
10、s bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, 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, Sloven
11、ia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for
12、 CEN national Members. Ref. No. EN ISO 10121-2:2013: EBS EN ISO 10121-2:2013 EN ISO 10121-2:2013 (E) 3 Foreword This document (EN ISO 10121-2:2013) has been prepared by Technical Committee ISO/TC 142 “Cleaningequipment for air and other gases” in collaboration with Technical Committee CEN/TC 195 “Ai
13、r filters forgeneral air cleaning” the secretariat of which is 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 October 2013, and conflicting national standards shall be withdrawn atthe
14、 latest by October 2013. Attention is drawn to the possibility 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 nationa
15、l standards organizations of the followingcountries are bound 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
16、, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 10121-2:2013 has been approved by CEN as EN ISO 10121-2:2013 without any modification. BS EN ISO 10121-2:2013ISO 10121
17、-2:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols and abbreviated terms . 64.1 Symbols . 64.2 Abbreviated terms . 75 Testing of GPACDs 85.1 General . 85.2 Test setup and normative section of test s
18、tand 85.3 Raw data, sampling accuracy and normative generation parameters 95.4 Test parameters selected between user and supplier .105.5 Simplified benchmark setup 116 Test sequence 136.1 General 136.2 Conditioning and pressure drop determination .136.3 Initial removal efficiency . 146.4 Capacity de
19、termination 166.5 Retentivity determination 197 Validation of test setup .207.1 General 207.2 Determination of rise time and decay time . 208 Evaluation and report 228.1 Test report introduction 228.2 Test report example . 239 Safety features .27Annex A (normative) Test equipment requirements, equip
20、ment validation and routine operation .28Annex B (informative) Challenge gases, generation sources and analysis techniques .31Annex C (informative) Test equipment designs .36Bibliography .39BS EN ISO 10121-2:2013ISO 10121-2:2013(E)ForewordISO (the International Organization for Standardization) is a
21、 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 represente
22、d 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.International Standards are draft
23、ed 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 International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Stand
24、ard 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 the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 10121-2 was prepared by
25、 Technical Committee ISO/TC 142, Cleaning equipment for air and other gases.ISO 10121 consists of the following parts, under the general title Test methods for assessing the performance of gas-phase air cleaning media and devices for general ventilation: Part 1: Gas-phase air cleaning media (GPACM)
26、Part 2: Gas-phase air cleaning devices (GPACD)iv ISO 2013 All rights reservedBS EN ISO 10121-2:2013ISO 10121-2:2013(E)IntroductionThere is an increasing use and need for gas-phase filtration in general filtration applications. This demand can be expected to increase rapidly due to the increasing pol
27、lution problems in the world together with an increasing awareness that solutions to the problems are available in the form of filtration devices or, phrased more technically, gas-phase air cleaning devices (GPACD). The performance of devices relies to a large extent on the performance of a gas-phas
28、e air cleaning media (GPACM) incorporated in the device. Still applications and device performance are often poorly understood by the users and suppliers of such media and devices. Media tests may also be adequate to offer data for real applications if actual low concentrations (weeks) can be used i
29、n the test, provided that the geometrical configuration, packing density and flow conditions of the small-scale test specimen are equal to those used in the real applications. Such tests are however not included in the scope of ISO 10121. ISO 10121 attempts to increase understanding and communicatio
30、n by supplying a more standardized interface between media suppliers, device suppliers and end users. At present, standards exist for general ventilation in Japan1by JIS, automotive filters by ISO4, in-duct sorptive media gas-phase air-cleaning devices by ASHRAE7and for adsorptive media by ASHRAE8an
31、d ASTM9. No international standard for general filtration exists today.This part of ISO 10121 prescribes methods, test equipment, data interpretation and reporting for gas-phase air cleaning devices intended for the removal of gas-phase contamination from air in general ventilation applications.In a
32、ddition, information is given in a number of annexes: Annex A describes the normative validation procedure in detail in a tabulated form. Annex B gives a list of possible test gases, generation sources and suggests suitable analysis equipment for common test gases in addition to reference techniques
33、 given for the simplified benchmark setup in Clause 5.5. Annex C discusses different test stand designs.A general introduction to molecular filtration and molecular filtration testing can be found in the scientific literature.ISO 10121 aims to provide laboratory test methods for media and devices wh
34、ich are used for removal of gas-phase contaminants from air in general ventilation. It consists of two parts: ISO 10121-1 covers three different media configurations and is targeted towards giving a standardized interface between media suppliers and producers of air cleaning devices. It may also be
35、used between media suppliers and end customers with regards to loose fill media properties. This part of ISO 10121 aims to give a standardized interface between suppliers of air cleaning devices and end customers seeking the most cost efficient way to employ gas-phase filtration. ISO 2013 All rights
36、 reserved vBS EN ISO 10121-2:2013BS EN ISO 10121-2:2013Test methods for assessing the performance of gas-phase air cleaning media and devices for general ventilation Part 2: Gas-phase air cleaning devices (GPACD)1 ScopeThis part of ISO 10121 aims to provide an objective test method to estimate the p
37、erformance of any full size gas filtration device (GPACD) for general filtration regardless of media or technique used in the device. In fact, the goal of this part of ISO 10121 is to avoid relating the test data to internal parameters altogether. The benefit with this approach is that customers of
38、GPACDs will be able to concentrate on price/performance and suppliers will have access to a normative and objective test standard that will not require the release of proprietary information or reverse engineering of the product.To ensure objectivity for test equipment suppliers, no specific design
39、of the test apparatus is specified. Instead requirements of apparatus properties and validation tests are specified. However, different design examples in present use are outlined. This part of ISO 10121 can also be used with technologies such as scrubbers, absorbers, non-sorptive devices or packed
40、columns as long as they fit into the test apparatus, can be meaningfully judged by the test method and are intended for general ventilation applications, both residential and non residential. Nuclear and military applications are specifically excluded.2 Normative referencesThe following documents, i
41、n 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 29464:2011, Cleaning equipment
42、 for air and other gases TerminologyEN 15805:2009, Particulate air filters for general ventilation Standardised dimensions3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 29464 and the followings apply.3.1absorptiontransport and dissolution of a sorbat
43、e into an absorbent3.2adsorbatemolecular compound in gaseous or vapour phase that will be retained by the adsorbent material of the media3.3adsorbentmaterial that collects adsorbates on its surface through physical or chemical processes3.4adsorptionprocess in which the molecules of a gas adhere by p
44、hysical or chemical processes to the exposed surfaces of solid substances, both the outer surface and inner pore surface, with which they come into contactINTERNATIONAL STANDARD ISO 10121-2:2013(E) ISO 2013 All rights reserved 1BS EN ISO 10121-2:2013ISO 10121-2:2013(E)3.5breakthroughamount of gaseou
45、s contaminant in the effluent of a GPACDNote 1 to entry: See “penetration”.3.6breakthrough vs. time curveplot of contaminant penetration versus time for a particular challenge concentration and airflowSource: ISO 29464:2011; 3.2.673.7bypassproportion of the challenge air stream that passes around th
46、e GPACD without contacting the mediaSource: ISO 29464:2011; 3.2.643.8capacitymsamount (mass or moles) of a selected sorbate that can be contained in the filter media of a GPACD at given test conditions, and a specific end pointNote 1 to entry: Capacity can also be negative during desorption.3.9chall
47、enge concentrationconcentration of the test contaminant(s) of interest in the air stream prior to filtration cf. challenge air stream3.10challenge compoundchemical compound that is being used as the contaminant of interest for any given test3.11challenge air streamtest contaminant(s) of interest dil
48、uted to the specified concentration(s) of the test prior to filtrationSource: ISO 29464:2011; 3.2.163.12channelingdisproportionate or uneven flow of gas through passages of lower resistance due to inconsistencies in the design or production of a GPACD, particularly in packed granular bedsSource: ISO
49、 29464:2011; 3.2.173.13chemisorptionchemical adsorptiontrapping of gaseous or vapour contaminants on an adsorbent involving chemical reaction on the adsorbent surfaceSource: ISO 29464:2011; 3.2.193.14concentrationCnquantity of one substance dispersed in a defined amount of anotherNote 1 to entry: Indices “n” denote location.2 ISO 2013 All rights reservedBS EN ISO 10121-2:2013ISO 10121-2:2013(E)Source: ISO 29464:2011; 3.2.213.15contaminantsubstance (solid, liquid, or gas) that negatively affects the intended use of a flui
