1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 14451-4:2013Pyrotechnic articles Pyrotechnic articles for vehiclesPart 4: Requirements and categorization for micro gas generatorsBS EN ISO 14451-4:2013 BRITISH STANDAR
2、DNational forewordThis British Standard is the UK implementation of EN ISO 14451-4:2013.The UK participation in its preparation was entrusted to T e c h n i c a lCommittee CII/47, Pyrotechnic articles.A list of organizations represented on this committee can beobtained on request to its secretary.Th
3、is publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013 ISBN 978 0 580 69665 7 ICS 43.040.80 Compliance with a British Standard cannot con
4、fer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2013.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14451-4 March 2013 ICS 43.04
5、0.80 English Version Pyrotechnic articles - Pyrotechnic articles for vehicles - Part 4: Requirements and categorization for micro gas generators (ISO 14451-4:2013) Articles pyrotechniques - Articles pyrotechniques pour vhicules - Partie 4: Exigences relatives aux micrognrateurs de gaz et leur classe
6、ment en catgories (ISO 14451-4:2013) Pyrotechnische Gegenstnde - Pyrotechnische Gegenstnde fr Fahrzeuge - Teil 4: Anforderungen und Kategorisierung von Mikrogasgeneratoren (ISO 14451-4:2013) This European Standard was approved by CEN on 9 February 2013. CEN members are bound to comply with the CEN/C
7、ENELEC Internal Regulations which stipulate the conditions 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 Centr
8、e or to any CEN member. This European Standard exists in 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
9、official versions. CEN members are the national standards 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, Netherla
10、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, 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 exploita
11、tion in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14451-4:2013: EBS EN ISO 14451-4:2013EN ISO 14451-4:2013 (E) 3 Foreword This document (EN ISO 14451-4:2013) has been prepared by Technical Committee CEN/TC 212“Pyrotechnic articles” the secretariat of whic
12、h is held by NEN, in collaboration with Technical CommitteeISO/TC 22 “Road vehicles“. 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 2013, and conflicting national standards shall bewith
13、drawn at the latest by September 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. This document has been prepared under a mandate
14、given to CEN by the European Commission and theEuropean Free Trade Association, and supports essential requirements of EU Directive. For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, the nation
15、al 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, Lithuani
16、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14451-4:2013 has been approved by CEN as EN ISO 14451-4:2013 without any modification. BS EN ISO 14451-4:2013EN ISO 1
17、4451-4:2013 (E) 4 Annex ZA (informative) Relationship between this European Standard and the EssentialRequirements of EC Directive 2007/23/EC on the placing on the marketof pyrotechnic articles This European Standard has been prepared under a mandate given to CEN by the European Commissionand the Eu
18、ropean Free Trade Association to provide one means of conforming to Essential Requirements ofthe New Approach Directive 2007/23/EC on the placing on the market of pyrotechnic articles. Once this standard is cited in the Official Journal of the European Union under that Directive and has beenimplemen
19、ted as a national standard in at least one Member State, compliance with the normative clauses ofthis standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption ofconformity with the corresponding Essential Requirements of that Directive and associated EFTA
20、regulations. Table ZA.1 Correspondence between this European Standard and Directive 2007/23/EC on theplacing on the market of pyrotechnic articles (1 of 2) Clause(s)/sub-clause(s) of this document Essential Safety Requirements (ESRs) of Directive 2007/23/EC Qualifying remarks/Notes 4.7, 4.8 (1) Note
21、: It is taken into account that the intended purpose of the pyrotechnic article is to function in a vehicle in case of accidents (2) See ISO 14451-2 4.8 (3) 1st sentence 4.8 (3) 2nd and 3rd sentences Note: It is taken into account that the intended purpose of the pyrotechnic article is to function i
22、n a vehicle in case of accidents 4.2 (3a) 4.5 (3b) 4.3, 4.4, 4.6 (3c) 4.5 (3d) 4.5 (3e) 4.4, 4.5 (3f) 4.6 (3g) (3h) See ISO 14451-3 4.3, 4.5 (3i) BS EN ISO 14451-4:2013EN ISO 14451-4:2013 (E) 5 Table ZA.1 (2 of 2) Clause(s)/sub-clause(s) of this document Essential Safety Requirements (ESRs) of Direc
23、tive 2007/23/EC Qualifying remarks/Notes (3j) See ISO 14451-2 4.3, 4.4, 4.6 (3) Last sentence 1 (4a) 1 (4b) 4.2, 4.8, 6 (5 B.1) (5 B.2) See ISO 14451-2 and ISO 14451-3 4.6 (5 B.3) (5 B.4) Not applicable (5 C.1) to (5 C.5) Not applicable 4.2 (5 C.6) (5 C.7) Not applicable WARNING Other requirements a
24、nd other EU Directives may be applicable to the product(s) falling within the scope of this part of EN ISO 14451. BS EN ISO 14451-4:2013ISO 14451-4:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Requirements and accepta
25、nce criteria . 14.1 General . 14.2 Verification of design and documentation 14.3 Drop test . 14.4 Vibration and temperature test 24.5 Thermal humidity cycling test . 24.6 Electrostatic discharge (ESD) test 24.7 Tank test 24.8 Functioning test . 35 Test matrix for micro gas generators 36 Categorizati
26、on . 3BS EN ISO 14451-4:2013ISO 14451-4:2013(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 mem
27、ber 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 the work. ISO collaborates closely with the International El
28、ectrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted 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 adopt
29、ed 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 bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
30、 rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 14451-4 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 212, Pyrotechnic articles, in collaboration with Technical Committee ISO/TC 22, Road vehicles, Subcommittee
31、 SC 12, Passive safety crash protection systems, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).ISO 14451 consists of the following parts, under the general title Pyrotechnic articles Pyrotechnic articles for vehicles: Part 1: Terminology Part 2: Tes
32、t methods Part 3: Labelling Part 4: Requirements and categorization for micro gas generators Part 5: Requirements and categorization for airbag gas generators Part 6: Requirements and categorization for airbag modules Part 7: Requirements and categorization for seatbelt pretensioners Part 8: Require
33、ments and categorization for igniters Part 9: Requirements and categorization for actuators Part 10: Requirements and categorization for semi-finished productsiv ISO 2013 All rights reservedBS EN ISO 14451-4:2013INTERNATIONAL STANDARD ISO 14451-4:2013(E)Pyrotechnic articles Pyrotechnic articles for
34、vehicles Part 4: Requirements and categorization for micro gas generators1 ScopeThis part of ISO 14451 specifies the types and order of tests to be applied to micro gas generators and sets out the associated acceptance criteria and means of categorization.This part of ISO 14451 applies to type tests
35、.This part of ISO 14451 is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only
36、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 14451-1, Pyrotechnic articles Pyrotechnic articles for vehicles Part 1: Terminology Pyrotechnic articles for vehicles Part 1: TerminologyISO 14451-2:2013, Pyrotechn
37、ic articles Pyrotechnic articles for vehicles Part 2: Test methodsISO 14451-8:2013, Pyrotechnic articles Pyrotechnic articles for vehicles Part 8: Requirements and categorization for igniters3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 14451-1 appl
38、y.4 Requirements and acceptance criteria4.1 GeneralMicro gas generators shall meet the requirements specified in 4.2 to 4.8 taking into account to the test matrix of Clause 5.4.2 Verification of design and documentationDocumentation shall be complete as specified in ISO 14451-2:2013, 4.1.4.3 Drop te
39、st4.3.1 RequirementsMicro gas generators shall be tested as specified in ISO 14451-2:2013, 4.2. ISO 2013 All rights reserved 1BS EN ISO 14451-4:2013ISO 14451-4:2013(E)4.3.2 Acceptance criteriaNo ignition of the micro gas generator shall occur.No spill out of the pyrotechnic composition from the micr
40、o gas generator shall occur.4.4 Vibration and temperature test4.4.1 RequirementsMicro gas generators shall be tested as specified in ISO 14451-2:2013, 4.3.4.4.2 Acceptance criteriaNo ignition of the micro gas generator shall occur.No spill out of the pyrotechnic composition from the micro gas genera
41、tor shall occur.4.5 Thermal humidity cycling test4.5.1 RequirementsMicro gas generators shall be tested as specified in ISO 14451-2:2013, 4.4.4.5.2 Acceptance criteriaNo ignition of the micro gas generator shall occur.4.6 Electrostatic discharge (ESD) test4.6.1 RequirementsMicro gas generators shall
42、 be tested as specified in ISO 14451-2:2013, 4.5.If all igniters contained within the micro gas generator are already successfully tested according to ISO 14451-8:2013, 4.5, the ESD test should be considered passed for the micro gas generator as well.4.6.2 Acceptance criteriaNo ignition of the micro
43、 gas generator shall occur.4.7 Tank test4.7.1 RequirementsMicro gas generators shall be tested as specified in ISO 14451-2:2013, 4.8.4.7.2 Acceptance criteriaOnly intended fragmentation or intended opening of the micro gas generator shall occur.The performance of the micro gas generator shall be wit
44、hin the range of performance parameters as specified by the manufacturer.2 ISO 2013 All rights reservedBS EN ISO 14451-4:2013ISO 14451-4:2013(E)4.8 Functioning test4.8.1 RequirementsMicro gas generators shall be tested as specified in ISO 14451-2:2013, 4.9 with the micro gas generator in any positio
45、n without fixation.4.8.2 Acceptance criteriaOnly intended fragmentation or intended opening of the micro gas generator shall occur.5 Test matrix for micro gas generatorsTable 1 shows a test matrix which summarizes all tests in an overview. Test samples have been numbered from 1 to 10 for easier refe
46、rence. The roman numbers in the Table indicate in which sequence the same sample will undergo different examinations.Table 1 Test matrixTest methods of ISO 14451-2:2013Requirements of ISO 14451-4:2013Unexposed micro gas generatorsExposed micro gas generatorsSample number 1 2 to 4 5 6 to 8 9 10Possib
47、ility to reuse the test from sub-level(s) for the assessment of the micro gas generator. (See relevant test requirement.)NO NO YES NO NO NOVerification of design and documentation4.1 4.2 I I I I I IDrop test 4.2 4.3 IIVibration and temperature test4.3 4.4 IIThermal humidity cycling test4.4 4.5 IIEle
48、ctrostatic discharge (ESD) test4.5 4.6 IITank test 4.8 4.7 IIFunctioning test 4.9 4.8 II IIIaIIIaaAlternatively, it is permitted to carry out the tank test instead of the functioning test.6 Categorization6.1 Micro gas generators are categorized as follows: Category P1: Micro gas generators that pres
49、ent a low hazard; Category P2: Micro gas generators that are intended for handling or use only by persons with specialist knowledge.6.2 The assignment to P1 or P2 of the micro gas generator is done according to the following criteria when tested under functioning test (see 4.8): P1 criterion: The distance from the initial location of the article to the first impact on the ground of the micro gas generator or any fragment shall be not more than 15 m. ISO 2013 All rights reserved 3BS EN ISO 14451-4:2013ISO 14451-4:20
