1、BSI Standards PublicationPD ISO/TS 16973:2016Respiratory protective devices Classification for respiratoryprotective device (RPD),excluding RPD for underwaterapplicationPD ISO/TS 16973:2016 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implementation of ISO/TS16973:2016.The UK
2、 participation in its preparation was entrusted to TechnicalCommittee PH/4, Respiratory protection.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are respon
3、sible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 76511 7ICS 13.340.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority of theStandards
4、 Policy and Strategy Committee on 30 April 2016.Amendments issued since publicationDate Text affectedPD ISO/TS 16973:2016 ISO 2016Respiratory protective devices Classification for respiratory protective device (RPD), excluding RPD for underwater applicationAppareils de protection respiratoire Classi
5、fication pour les APR, lexclusion des APR pour application sous-marineTECHNICAL SPECIFICATIONISO/TS16973Reference numberISO/TS 16973:2016(E)First edition2016-04-01PD ISO/TS 16973:2016ISO/TS 16973:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll
6、 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 written permission. Permission can be requested fr
7、om 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.orgPD ISO/TS 16973:2016ISO/TS 16973:2016(E)Foreword ivIntroduction
8、 v1 Scope . 12 Normative references 13 Terms and definitions . 14 Mode of operation . 15 Protection classes (PC) . 26 Work rate 27 Respiratory interface class 38 Supplied breathable gas RPD capacity class 39 Filter class 39.1 Particle filter class 39.1.1 Particle filter efficiency 39.1.2 Particle fi
9、lter work rate class 49.2 Gas filter class 49.2.1 General 49.2.2 Gas filter capacity 49.2.3 Gas filter work rate class . 510 RPD using standardized connector . 511 Special application class . 511.1 General . 511.2 Firefighting class . 611.3 Chemical, biological, radiological and nuclear class . 611.
10、4 Marine class . 611.5 Mining class . 611.6 Abrasive blasting class . 711.7 Welding class 711.8 Escape class . 712 Sequence of marking information . 812.1 Sequence of marking-supplied breathable gas RPD . 812.2 Sequence of marking-filtering RPD . 812.3 Sequence of marking-filter . 912.4 Sequence of
11、marking-respiratory interface using standardized connector. 912.5 Sequence of marking-filters using standardized connector 9Annex A (normative) Classification and related marking scheme overview 10Annex B (informative) Examples for ISO classification and related marking.15Annex C (informative) Speci
12、al applications .24Annex D (informative) Work rate class .26Annex E (informative) Respiratory interface class .28Bibliography .30 ISO 2016 All rights reserved iiiContents PagePD ISO/TS 16973:2016ISO/TS 16973:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide feder
13、ation 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 represented on that commit
14、tee. 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 procedures used to develop this document and
15、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 rules of the ISO/IEC Directives, Part
16、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 identified during the development of the
17、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 explanation on the meaning of ISO specific terms
18、and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information.ISO/TS 16973 was prepared by Technical Committee ISO/TC 94, Personal safety Protect
19、ive clothing and equipment, Subcommittee SC 15, Respiratory protective devices.iv ISO 2016 All rights reservedPD ISO/TS 16973:2016ISO/TS 16973:2016(E)IntroductionThis Technical Specification contains the classification of Respiratory Protective Devices (RPD) and the related marking in accordance wit
20、h the requirements of the performance standards.The basic classification, which applies to all RPD, will be marked in the following order:a) protection class;b) work rate class;c) respiratory interface class.Some examples for marking of commonly known RPD are included in Annex B.For Supplied Breatha
21、ble Gas RPD, the classification also includes gas capacity class.For Filtering RPD, the classification also includes a particle filter class and/or the gas filter types and classes.RPD designated to be used for Special Applications are further classified accordingly.The special applications identifi
22、ed are Firefighting, Chemical, Biological, Radiological and Nuclear (CBRN), Marine, Mining, Abrasive blasting, Welding, and Escape.Each RPD will have an individual classification based on its performance specified in the relevant performance standards.Explanations of the classification and examples
23、of the classification of RPD are given in the Annexes.The following definitions apply in understanding how to implement an ISO International Standard and other normative ISO deliverables (TS, PAS, IWA): “shall” indicates a requirement; “should” indicates a recommendation; “may” is used to indicate t
24、hat something is permitted; “can” is used to indicate that something is possible, for example, that an organization or individual is able to do something.3.3.1 of the ISO/IEC Directives, Part 2 (sixth edition, 2011) defines a requirement as an “expression in the content of a document conveying crite
25、ria to be fulfilled if compliance with the document is to be claimed and from which no deviation is permitted.”3.3.2 of the ISO/IEC Directives, Part 2 (sixth edition, 2011) defines a recommendation as an “expression in the content of a document conveying that among several possibilities one is recom
26、mended as particularly suitable, without mentioning or excluding others, or that a certain course of action is ISO 2016 All rights reserved vPD ISO/TS 16973:2016ISO/TS 16973:2016(E)preferred but not necessarily required, or that (in the negative form) a certain possibility or course of action is dep
27、recated but not prohibited.”vi ISO 2016 All rights reservedPD ISO/TS 16973:2016TECHNICAL SPECIFICATION ISO/TS 16973:2016(E)Respiratory protective devices Classification for respiratory protective device (RPD), excluding RPD for underwater application1 ScopeThis Technical Specification specifies the
28、classification of Respiratory Protective Devices based on their performance. The performance requirements are given in the relevant performance standards.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its appl
29、ication. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 16900-1, Respiratory protective devices Methods of test and test equipment Part 1: Determination of inward leakageISO 16900-3, R
30、espiratory protective devices Methods of test and test equipment Part 3: Determination of particle filter penetrationISO 16900-12, Respiratory protective devices Methods of test and test equipment Part 12: Determination of volume-averaged work of breathing and peak respiratory pressuresISO 16972, Re
31、spiratory protective devices Terms, definitions, graphical symbols and units of measurementISO/TS 16976-1, Respiratory protective devices Human factors Part 1: Metabolic rates and respiratory flow ratesISO 17420-3, Respiratory protective devices Performance requirements Part 3: Thread connection3 Te
32、rms and definitionsFor the purposes of this document, the terms and definitions given in ISO 16972 apply.4 Mode of operationThere are two modes of operation that RPD may employ to supply breathable gas to the wearer. These modes are specified in Table 1.Table 1 Mode of operationMode of operation Mea
33、ns of providing breathable gas to the wearer Typical examples of RPDBreathable gas supplyThe RPD supplies the wearer with breathable gas from a remote supply of breathable gas or from breathable gas stored in, or regenerated by, the RPD.Compressed airline breath-ing apparatus, self-contained breathi
34、ng apparatus (SCBA)FiltrationThe RPD removes gases, vapours and/or particles from the ambient air depending on the air-purifying element (filter) used. These can be assisted or unas-sisted devices.Half mask with gas filter(s)Filtering facepiece ISO 2016 All rights reserved 1PD ISO/TS 16973:2016ISO/T
35、S 16973:2016(E)Combined RPD are devices which have both filtration and breathable gas supply modes. Combined RPD can have different classes depending on the operating method being used. An example will be an RPD which can operate as a compressed airline breathing apparatus and has an auxiliary filte
36、r.Multi-functional RPD are RPD which have different methods of operation within either filtration or breathable gas supply modes.Multi-functional RPD can have different classes depending on the operating method being used.An example would be an RPD which can operate as a compressed airline breathing
37、 apparatus with an auxiliary self-contained breathing apparatus. Another example is an assisted filtering RPD which can operate as an unassisted filtering RPD when not powered.The performance requirements for breathable gas supply RPD and filtering RPD are specified in the relevant performance stand
38、ards.5 Protection classes (PC)RPD shall be classified by Protection Class.The Protection classes are derived from the results of a laboratory Total Inward Leakage (TIL) test in accordance with ISO 16900-1 and the relevant performance standards. These classes are provided in Table 2.Table 2 Protectio
39、n classesProtection ClassTILMAX%PC1 20PC2 5PC3 1PC4 0,1PC5 0,01PC6 0,001NOTE TIL is the ratio of the concentration of a test agent in the breathing zone inside the RPD compared with the concentration outside the RPD, expressed as a percentage. This is the level of total inward leakage of the RPD as
40、measured in the laboratory under standard defined conditions. TIL levels used in RPD evaluation are given in Table 2 and Figure A.1.6 Work rateRPD shall be classified by Work rate class, as determined by the RPD manufacturer. The Work rate classes are derived from the results of a laboratory test, W
41、ork of breathing, and the related performance requirement, in accordance with ISO 16900-12 and the relevant performance standards.These classes are W4, which is equivalent to ISO/TS 16976-1 work class 8 (maximal), W3, which encompasses ISO/TS 16976-1 work classes 7 and 6 (extremely heavy and very-ve
42、ry heavy), W2 which encompasses ISO/TS 16976-1 work classes 5 and 4 (very heavy and heavy), and W1, which encompasses ISO/TS 16976-1 work classes 3, 2 and 1 (moderate and light).For further information, see Annex D. RPD designated for special applications may have performance requirements with minim
43、um work rate classes.2 ISO 2016 All rights reservedPD ISO/TS 16973:2016ISO/TS 16973:2016(E)7 Respiratory interface classRespiratory interfaces shall be classified by coverage area see Figure E.1, a) to e).Respiratory interfaces shall be further classified by type: tight fitting; those that form a se
44、al with the wearers skin, and loose fitting, those that have a partial seal or no seal with the skin of the wearer. See Table 3, Figure A.1 and Figure E.1.Table 3 Respiratory interface classesRI Class RI area TypeeL e - more than head, up to complete body L-Loose fittingeT e - more than head, up to
45、complete body T-Tight fittingdL d - Head L-Loose fittingdT d - Head T-Tight fittingcL c - Face L-Loose fittingcT c - Face T-Tight fittingbL b - Nose and mouth L-Loose fittingbT b - Nose and mouth T-Tight fittingaL a - Mouth only L-Loose fittingaT a - Mouth only T-Tight fitting8 Supplied breathable g
46、as RPD capacity classSupplied breathable gas RPD that have a fixed volume of breathable gas (self-contained) shall be classified by the volume of breathable gas available for respiration and shall be designated by the letter “S” followed by the gas capacity in litres rounded down to increments of 15
47、0 l up to 900 l and increments of 300 l above 900 l.Supplied breathable gas RPD that have an external supply of breathable gas shall be classified and marked “SY”.Gas Capacity classification of these devices is shown in Table 4 and Figure A.2.Table 4 Supplied breathable gas capacityClassGas capacity
48、 lSxxxx Where xxxx is the available breathable gas volume for respirationSY Air supply from an external source (air line supplied)9 Filter class9.1 Particle filter classParticle filters shall be classified by their efficiency and work rate.9.1.1 Particle filter efficiencyFive classes of particle fil
49、ter efficiency are defined ranging from very low efficiency to extremely high efficiency. Table 5 and Figure A.3 list the filter classes and their minimum filter efficiency as determined in laboratory filter efficiency tests in accordance with ISO 16900-3 by testing at the relevant flowrate in accordance with the work rate class. ISO 2016 All rights reserved 3PD ISO/TS 16973:2016ISO/TS 16973:2016(E)Table 5 Particle filter classClassParticle filter efficiency %F1 80,00F2 95,00F3 99,00F4 99,90F
