1、Februar 2015DEUTSCHE NORM DIN-Normenausschuss Luft- und Raumfahrt (NL)Preisgruppe 19DIN Deutsches Institut fr Normung e. V. Jede Art der Vervielfltigung, auch auszugsweise, nur mit Genehmigung des DIN Deutsches Institut fr Normung e. V., Berlin, gestattet.ICS 49.025.01; 13.220.40; 49.140!%FA“2273530
2、www.din.deDDIN EN 16602-70-21Raumfahrtproduktsicherung Brennverhaltenstest fr die Auswahl von Raumfahrtmaterialien;Englische Fassung EN 16602-70-21:2014Space product assurance Flammability testing for the screening of space materials;English version EN 16602-70-21:2014Assurance produit des projets s
3、patiaux Essai de flammabilit pour la slection des matriaux dun projet spatial;Version anglaise EN 16602-70-21:2014Alleinverkauf der Normen durch Beuth Verlag GmbH, 10772 BerlinErsatz frDIN EN 14090:2002-10www.beuth.deGesamtumfang 51 SeitenDIN EN 16602-70-21:2015-02 2 Nationales Vorwort Dieses Dokume
4、nt (EN 16602-70-21:2014) wurde vom Technischen Komitee CEN/CLC/TC 5 Raumfahrt“ erarbeitet, dessen Sekretariat vom DIN (Deutschland) gehalten wird. Das zustndige deutsche Normungsgremium ist der Arbeitsausschuss NA 131-10-01 AA Interoperabilitt von Informations-, Kommunikations- und Navigationssystem
5、en“ im DIN-Normenausschuss Luft- und Raumfahrt (NL). Dieses Dokument (EN 16602-70-21:2014) basiert auf ECSS-Q-ST-70-21C. Dieses Dokument enthlt unter Bercksichtigung des DIN-Prsidialbeschlusses 1/2004 nur die englische Originalfassung von EN 16602-70-21:2014. Dieses Dokument wurde speziell zur Behan
6、dlung von Raumfahrtsystemen erarbeitet und hat daher Vorrang vor jeglicher Europischer Norm, da es denselben Anwendungsbereich hat, jedoch ber einen greren Geltungsbereich (z. B. Luft- und Raumfahrt) verfgt. nderungen Gegenber wird DIN EN 14090:2002-10 wurden folgende nderungen vorgenommen: a) Norm-
7、Nummer gendert; b) keinerlei nderungen des Textes. Frhere Ausgaben DIN EN 14090: 2002-10 DIN EN 16602-70-21:2015-02 3 Nationaler Anhang NA (informativ) Begriffe und Abkrzungen 3 Begriffe und Abkrzungen 3.1 Begriffe aus anderen Normen Fr die Anwendung dieses Dokuments gelten die Begriffe nach ECSS-S-
8、ST-00-01, insbesondere der folgende Begriff: Entflammbarkeit Fr die Anwendung dieses Dokuments gelten die Begriffe nach ECSS-Q-ST-70. 3.2 Fr diese Norm spezifische Begriffe 3.2.1 Sauerstoffkonzentrationsgrenze bei der Verbrennung polymerer Materialien Mindest-Volumenkonzentration an Sauerstoff in ei
9、nem Stickstoff-Sauerstoff-Gemisch, bei der es nach Zndung von unten noch zur Verbrennung des Materials kommen kann ANMERKUNG 1 Sie wird als Prozentsatz angegeben und nach folgender Gleichung bestimmt: niCCni=1limlim,(3.1) ANMERKUNG 2 D. h., das arithmetische Mittel der Konzentrationsgrenze, berechne
10、t als Funktion der Ergebnisse von Messungen von (Clim,i) an der Einheit. 3.3 Abkrzungen Fr die Anwendung dieses Dokuments gelten die Abkrzungen nach ECSS-S-ST-00-01 und die folgenden Abkrzungen: Abkrzung Bedeutung ClimMindest-Volumenkonzentration an Sauerstoff in einem Stickstoff-Sauerstoff-Gemisch,
11、 bei der es nach Zndung von unten noch zur Verbrennung des Materials kommen kann (en: minimum volumetric concentration of oxygen contained in an oxygen-nitrogen mixture, in the presence of which a material can still combust after ignition from the bottom) HMT Hexamethylentetramin (en: hexamethylenet
12、etramine) DIN EN 16602-70-21:2015-02 4 Leerseite EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16602-70-21 October 2014 ICS 13.220.40; 49.025.01; 49.140 Supersedes EN 14090:2002 English version Space product assurance - Flammability testing for the screening of space materials Assurance produ
13、it des projets spatiaux - Essai de flammabilit pour la slection des matriaux dun projet spatial Raumfahrtproduktsicherung - Brennverhaltenstest fr die Auswahl von Raumfahrtmaterialien This European Standard was approved by CEN on 11 April 2014. CEN and CENELEC members are bound to comply with the CE
14、N/CENELEC 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 Ce
15、ntre or to any CEN and CENELEC 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 and CENELEC member into its own language and notified to the CEN-CENELEC Management Centre
16、has the same status as the official versions. CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
17、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN/CENELEC All rights of exploitat
18、ion in any form and by any means reserved worldwide for CEN national Members and for CENELEC Members. Ref. No. EN 16602-70-21:2014 E EN 16602-70-21:2014 (E) 2 Table of contents Foreword 4 1 Scope . 5 2 Normative references . 6 3 Terms, definitions and abbreviated terms 7 3.1 Terms from other standar
19、ds 7 3.2 Terms specific to the present standard . 7 3.3 Abbreviated terms. 7 4 Principles 8 4.1 Test methods 8 4.2 Screening tests . 8 4.2.1 Overview . 8 4.2.2 Screening Test 1: Upward propagation test 8 4.2.3 Screening Test 2: Standard test method for the determination of the oxygen concentration l
20、imit during the combustion of polymer materials . 9 4.2.4 Screening Test 3: Electrical wire insulation flammability test method 9 4.3 Configuration test . 9 4.4 Additional tests . 9 5 Requirements 10 5.1 Test procedure . 10 5.1.1 Preparatory conditions 10 5.1.2 Test methods 11 5.2 Quality assurance
21、. 20 5.2.1 Data 20 5.2.2 Nonconformance . 21 5.2.3 Calibration . 21 5.2.4 Traceability . 21 Annex A (normative) Test report DRD 22 Annex B (informative) Test procedures 25 DIN EN 16602-70-21:2015-02 EN 16602-70-21:2014 (E) 3 Annex C (informative) Preparation and qualification of chemical igniters 30
22、 Annex D (informative) Graphical information . 38 Bibliography . 47 Figures Figure D-1 Diagram of the equipment used to determine the oxygen concentration limit 38 Figure D-2 Frame used to fix the sample 39 Figure D-3 Sample holder 40 Figure D-4 Sample holder 41 Figure D-5 : Samples from thermoplast
23、ic polymer materials . 42 Figure D-6 : Test set up for flammability of electric wires under heated wire conditions at 25 % by volume oxygen . 43 Figure D-7 General arrangement of modified burner and flame dimensions . 45 Figure D-8 General arrangement of apparatus for flammability test 46 Tables Tab
24、le D-1 : Description of test equipment as per Figure D-6 43 DIN EN 16602-70-21:2015-02 EN 16602-70-21:2014 (E) 4 Foreword This document (EN 16602-70-21:2014) has been prepared by Technical Committee CEN/CLC/TC 5 “Space”, the secretariat of which is held by DIN. This standard (EN 16602-70-21:2014) or
25、iginates from ECSS-Q-ST-70-21C. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2015, and conflicting national standards shall be withdrawn at the latest by April 2015. Attention is drawn to
26、 the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14090:2002. This document has been prepared under a mandate given to CEN by the
27、 European Commission and the European Free Trade Association. This document has been developed to cover specifically space systems and has therefore precedence over any EN covering the same scope but with a wider domain of applicability (e.g. : aerospace). According to the CEN-CENELEC Internal Regul
28、ations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, It
29、aly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16602-70-21:2015-02 EN 16602-70-21:2014 (E) 5 1 Scope This Standard defines a multi-test procedure for the determination of
30、 the flammability characteristics of non-metallic materials under a set of closely controlled conditions. The test procedure covers both individual materials and materials used in configuration. This Standard describes a series of tests to provide data for aid in the evaluation of the suitability of
31、 materials for use in a space vehicle crew compartment. The data obtained are in respect to the ease of ignition and the flame propagation characteristics of materials. All non-metallic materials are inherently flammable, the degree to which this is true is dependant on the chemical nature of the ma
32、terial itself and the environment to which the material is exposed. In the closed environment of a manned spacecraft this can lead to a potentially dangerous situation and close control is therefore required. This standard may be tailored for the specific characteristics and constrains of a space pr
33、oject in conformance with ECSS-S-ST-00. DIN EN 16602-70-21:2015-02 EN 16602-70-21:2014 (E) 6 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this ECSS Standard. For dated references, subsequent amendments to,
34、 or revision of any of these publications do not apply. However, parties to agreements based on this ECSS Standard are encouraged to investigate the possibility of applying the more recent editions of the normative documents indicated below. For undated references, the latest edition of the publicat
35、ion referred to applies. EN reference Reference in text Title EN 16601-00-01 ECSS-S-ST-00-01 ECSS system - Glossary of terms EN 16602-10-09 ECSS-Q-ST-10-09 Space product assurance - Nonconformance control system EN 16602-70 ECSS-Q-ST-70 Space product assurance - Materials, mechanical parts and proce
36、sses DIN 50050-1:1986 Testing of materials; burning behaviour of materials; small burning cabinet ISO 6941:1984 Textile fabrics - Burning behaviour - Measurement of flame spread properties of vertically oriented specimens DIN EN 16602-70-21:2015-02 EN 16602-70-21:2014 (E) 7 3 Terms, definitions and
37、abbreviated terms 3.1 Terms from other standards For the purpose of this Standard, the terms and definitions from ECSS-S-ST-00-01 apply, in particular for the following terms: flammability For the purpose of this Standard, the terms and definitions from ECSS-Q-ST-70 apply. 3.2 Terms specific to the
38、present standard 3.2.1 oxygen concentration limit during the combustion of polymeric materials minimum volumetric amount of oxygen contained in the nitrogen-oxygen mixture, in the presence of which the material can still combust after ignition from the bottom NOTE 1 It is expressed as a percentage a
39、nd determined using the equation: niCCni=1limlim,3-1 NOTE 2 i.e. the arithmetic average of the concentration limit calculated as a function of the results of unit measurements of (Clim,i). 3.3 Abbreviated terms For the purpose of this Standard, the abbreviated terms from ECSS-S-ST-00-01 and the foll
40、owing apply: Abbreviation Meaning Clim minimum volumetric concentration of oxygen contained in an oxygen-nitrogen mixture, in the presence of which a material can still combust after ignition from the bottom. HMT hexamethylenetetramine DIN EN 16602-70-21:2015-02 EN 16602-70-21:2014 (E) 8 4 Principle
41、s 4.1 Test methods Four test methods are included within this Standard. They can be divided into two different categories: Screening tests (see clause 4.2), and Configuration tests (see clause 4.3). 4.2 Screening tests 4.2.1 Overview These are the prime tests to be performed on a material to assess
42、its basic acceptability or otherwise with respect to flammability. They are designed to test the material under worst case test conditions, with respect to, for instance, environment, use, or thickness. The following two tests form the basis for acceptance or otherwise of most non-metallic materials
43、 but are very different in the data generated: a. Test 1: Upward propagation test b. Test 2: Standard test method for the determination of the oxygen concentration limit during the combustion of polymer materials The choice of which test method is used is dependant on the project concerned and is sp
44、ecified within the business agreement. Test 3 “Electrical wire insulation flammability test method” is related specifically to wire insulation materials. Materials which meet the requirements of these tests can be considered for general application, within the constraints of the test conditions used
45、. 4.2.2 Screening Test 1: Upward propagation test The purpose of this test is to determine the flammability characteristics of candidate materials supplied to a standard format when exposed to an ignition source applied at the bottom edge. This test in general is applicable to NASA payloads (e.g. Sp
46、ace Station, STS). See also NASA STD 6001 Test 1. DIN EN 16602-70-21:2015-02 EN 16602-70-21:2014 (E) 9 4.2.3 Screening Test 2: Standard test method for the determination of the oxygen concentration limit during the combustion of polymer materials The oxygen concentration limit provides a comparative
47、 evaluation of the tendency of polymeric materials to burn and to assess the fire resistance of these materials. The oxygen concentration limit during the combustion of polymer materials is considered as one of the main indices characterizing the risk of fire which materials present before being con
48、sidered for use in environments containing various oxygen levels. 4.2.4 Screening Test 3: Electrical wire insulation flammability test method This test is designed to screen wire insulation for flammability characteristics. 4.3 Configuration test This test is designed to determine the flammability c
49、haracteristics of materials configured in the same manner as that in qualification and subsequent spacecraft models. It is intended to determine whether a flammability hazard exists when a material, which fails the basic screening test, is desired to be used. Materials which are shown to be acceptable in this manner can be accepted for restricted application, within the constraints of the test conditions used. Materials which fail this test are subject to a deviation request. Examples are: a. flammable adhesives where the
