1、Cleaning of air and other gases TerminologyBS ISO 29464:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Cleaning of air and other gases Terminologypuration de lair et autres gaz TerminologieINTERNATIONAL STANDARDISO29464Second edition2017-09Reference num
2、berISO 29464:2017(E)National forewordThis British Standard is the UK implementation of ISO 29464:2017. It supersedes BS ISO 29464:2011, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee MCE/21, Filters for gases and liquids.A list of organizations repres
3、ented 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 2017 Published by BSI Standards Limited 2017ISBN 978 0 580
4、 83258 1ICS 01.040.91; 91.140.30Compliance 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 30 September 2017.Amendments/corrigenda issued since publicationDate Text affecte
5、dBRITISH STANDARDBS ISO 29464:2017 ISO 2017Cleaning of air and other gases Terminologypuration de lair et autres gaz TerminologieINTERNATIONAL STANDARDISO29464Second edition2017-09Reference numberISO 29464:2017(E)BS ISO 29464:2017ISO 29464:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DO
6、CUMENT ISO 2017, Published in SwitzerlandAll 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 writte
7、n permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 29464:2017IS
8、O 29464:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll 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 photocopy
9、ing, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01
10、11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 29464:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 13.1 General, applicable to both particulate and gas-phase air cleaners . 13.2 Particulate filters (including general ventilation, HEPA and ULPA filters) . 53.3 A
11、ir intake particulate filters for rotary machines 203.4 Cleanable particulate filter degradation 223.5 Gas phase air cleaners (GPAC) 243.6 UVC devices . 30Bibliography .33 ISO 2017 All rights reserved iiiContents PageBS ISO 29464:2017ISO 29464:2017(E)ForewordISO (the International Organization for S
12、tandardization) 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 ri
13、ght 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 procedure
14、s 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 ru
15、les 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 id
16、entified 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 explana
17、tion on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ i
18、so/ foreword .html.This document was prepared by Technical Committee ISO/TC 142, Cleaning equipment for air and other gases.This second edition of ISO 29464 cancels and replaces the first edition (ISO 29464:2011), which has been technically revised.iv ISO 2017 All rights reservedBS ISO 29464:2017ISO
19、 29464:2017(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 committees. Each member body interested in a subject
20、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) o
21、n 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
22、. 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
23、 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
24、 of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical
25、Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 142, Cleaning equipment for air and other gases.This second edition of ISO 29464 cancels and replaces the first edition (ISO 29464:2011), which has been technica
26、lly revised.iv ISO 2017 All rights reserved INTERNATIONAL STANDARD ISO 29464:2017(E)Cleaning of air and other gases Terminology1 ScopeThis document establishes a terminology for the air filtration industry and comprises terms and definitions only.This document is applicable to particulate and gas ph
27、ase air filters and air cleaners used for the general ventilation of inhabited enclosed spaces. It is also applicable to air inlet filters for static or seaborne rotary machines and UV-C germicidal devices.It is not applicable to cabin filters for road vehicles or air inlet filters for mobile intern
28、al combustion engines for which separate arrangements exist. Dust separators for the purpose of air pollution control are also excluded.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purpose of this document, the following terms and definition
29、s apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp3.1 General, applicable to both particulate and gas-p
30、hase air cleaners3.1.1air cleanerdevice intended to remove contaminants (3.1.8) from air in a ventilation system or enclosed space3.1.2air velocityrate of air movementNote 1 to entry: It is expressed in m/s (fpm) to three significant figures.3.1.3bypassair filter bypasssneakageproportion of the chal
31、lenge air stream (3.5.13) that passes around an air cleaner (3.1.1) without interacting with the air cleaner3.1.4calibrateto compare readings from the instrument to be calibrated with those from a reference device ISO 2017 All rights reserved 1BS ISO 29464:2017ISO 29464:2017(E)3.1.5captureextraction
32、 of particles, liquid particles or gases, close to their sources for purposes of collection or sampling3.1.6classificationallocation of filters into groups and classes according to relevant aspects of their filtration performance3.1.7concentrationquantity of one substance dispersed in a defined amou
33、nt of another3.1.8contaminantpollutantsubstance (solid, liquid or gas) that negatively affects the intended use of a fluid3.1.9contaminationpollutionpresence of a substance that negatively affects the intended use of a fluid3.1.10decontamination factorratio of the contaminant (3.1.8) concentration o
34、r particle number upstream of the test device to the contaminant concentration (3.1.7) or particle number downstream of the deviceNote 1 to entry: The decontamination factor can also be expressed as 1/(1 overall efficiency) or as 1/penetration.3.1.11downstreamarea or region into which fluid flows on
35、 leaving the test device3.1.12efficiencyfilter efficiencyfraction or percentage of a challenge contaminant (3.1.8) that is removed by a test device3.1.13average efficiencyvalue of efficiency which results from averaging the efficiencies determined over a number of discreet intervals up to the final
36、pressure differential3.1.14effluentfluid discharged from a given source into the external environmentNote 1 to entry: This is a general term describing any fluid discharged from a given source; in this context, the discharged fluid may be liquid or gaseous and may contain associated liquid and/or pa
37、rticulate contaminants (3.1.8).3.1.15face velocityfilter face velocityvolumetric air flow rate divided by the nominal filter face area (3.1.18)Note 1 to entry: filter face velocity is expressed in m/s.2 ISO 2017 All rights reservedBS ISO 29464:2017ISO 29464:2017(E)3.1.5captureextraction of particles
38、, liquid particles or gases, close to their sources for purposes of collection or sampling3.1.6classificationallocation of filters into groups and classes according to relevant aspects of their filtration performance3.1.7concentrationquantity of one substance dispersed in a defined amount of another
39、3.1.8contaminantpollutantsubstance (solid, liquid or gas) that negatively affects the intended use of a fluid3.1.9contaminationpollutionpresence of a substance that negatively affects the intended use of a fluid3.1.10decontamination factorratio of the contaminant (3.1.8) concentration or particle nu
40、mber upstream of the test device to the contaminant concentration (3.1.7) or particle number downstream of the deviceNote 1 to entry: The decontamination factor can also be expressed as 1/(1 overall efficiency) or as 1/penetration.3.1.11downstreamarea or region into which fluid flows on leaving the
41、test device3.1.12efficiencyfilter efficiencyfraction or percentage of a challenge contaminant (3.1.8) that is removed by a test device3.1.13average efficiencyvalue of efficiency which results from averaging the efficiencies determined over a number of discreet intervals up to the final pressure diff
42、erential3.1.14effluentfluid discharged from a given source into the external environmentNote 1 to entry: This is a general term describing any fluid discharged from a given source; in this context, the discharged fluid may be liquid or gaseous and may contain associated liquid and/or particulate con
43、taminants (3.1.8).3.1.15face velocityfilter face velocityvolumetric air flow rate divided by the nominal filter face area (3.1.18)Note 1 to entry: filter face velocity is expressed in m/s.2 ISO 2017 All rights reserved ISO 29464:2017(E)3.1.16filterair filterdevice for separating solid or liquid part
44、icles or gaseous contaminant (3.1.8) from an air stream passing through the deviceNote 1 to entry: The device is generally formed of a layer or layers of porous, fibrous or granular material.Note 2 to entry: Air being cleaned by a filter must pass through the filter, whereas an air cleaner (3.1.1) c
45、an reduce air contamination (3.1.9) by any method.3.1.17filter face areacross-sectional face area of the filter including the header frame when viewed from the direction of air flow using exact dimensions3.1.18nominal filter face areacross-sectional face area of the filter including the header frame
46、 when viewed from the direction of air flow using nominal dimensions3.1.19filter insertreplaceable part of a filter which contains the filter medium but which can only operate mounted inside a frame3.1.20filter mediummaterial separating particulate matter (3.2.139) from gases and characterized by it
47、s separating structure and its structural and/or textile-technological characteristics3.1.21filter medium areaarea of filter medium (3.1.20) contained in the filterNote 1 to entry: For filters with pleats or folds, the filter medium area may be much larger than the filter face area (3.1.17).3.1.22ef
48、fective filter medium areaeffective filtering areaexposed filter areaarea of the filter medium (3.1.20) contained in the filter through which air passes during operationNote 1 to entry: This excludes areas covered by sealant, spacers, struts, etc.Note 2 to entry: Effective filter medium area is expr
49、essed in m2.3.1.23filter medium velocitymedia velocitymedium velocityvolumetric air flow rate divided by the effective filter medium area (3.1.22) of the filter element (3.2.77)Note 1 to entry: Filter medium velocity is expressed in m/s.Note 2 to entry: In devices where the filter medium surface area has been increased by use of pleats, folds or bags, the filter medium velocity may be much less than the filter face velocity (3.1.15). ISO 2017 All rights reserved 3BS ISO 29464:2017ISO 29464:2017(E)3.1.24flow rateair flow
