1、April 2012 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 1
2、3.340.20!$Ue“1885066www.din.deDDIN EN 13087-4Protective helmets Test methods Part 4: Retention system effectivenessEnglish translation of DIN EN 13087-4:2012-04Schutzhelme Prfverfahren Teil 4: Wirksamkeit des HaltesystemsEnglische bersetzung von DIN EN 13087-4:2012-04Casques de protection Mthodes de
3、ssai Partie 4: Efficacit du systme de rtentionTraduction anglaise de DIN EN 13087-4:2012-04SupersedesDIN EN 13087-4:2001-01www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 13 pages03.12 DIN EN 13087-4:2012-04 2 A comma is used as the dec
4、imal marker. Start of application The start of application of this standard is 1 April 2012. National foreword This standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 158 “Head protection” (Secretariat: BSI, United Kingdom). The responsible German bo
5、dy involved in its preparation was the Normenausschuss Persnliche Schutzaus-rstung (Personal Protective Equipment Standards Committee), Working Committee NA 075-01-02 AA Arbeitsschutzhelme. Amendments This standard differs from DIN EN 13087-4:2001-01 as follows: a) normative references have been ada
6、pted to EN 960:2006 throughout the text; b) the size designations of the headforms have been brought in line with EN 960:2006 (the equivalent code letters according to EN 960:1994 are added in brackets); c) the standard has been editorially revised. Previous editions DIN EN 13087-4: 2001-01 EUROPEAN
7、 STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13087-4 February 2012 ICS 13.340.20 Supersedes EN 13087-4:2000English Version Protective helmets - Test methods - Part 4: Retention system effectiveness Casques de protection - Mthodes dessai - Partie 4: Efficacit du systme de rtention Schutzhelme - Prfve
8、rfahren - Teil 4: Wirksamkeit des Haltesystems This European Standard was approved by CEN on 17 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alte
9、ration. 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 three official versions (English, French, German). A version in any other language mad
10、e 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 standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Eston
11、ia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All r
12、ights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13087-4:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEN 13087-4:2012 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normati
13、ve references 53 Terms and definitions .54 Prerequisites 55 Method 55.1 General 55.2 Principle 65.3 Apparatus .65.3.1 General 65.3.2 Test headforms 65.3.3 Rigid base .65.3.4 Falling mass and guidance system .65.3.5 Means to measure impact speed .65.4 Procedure .75.5 Report .7Annex A (normative) Test
14、 results Uncertainty of measurement .9Annex B (informative) Significant technical changes between this European Standard and EN 13087-4:2000 10Annex ZA (informative) Relationship between this European Standard and the Essential requirements of EU Directive 89/686/EEC Personal Protective Equipment .
15、11DIN EN 13087- 4:2012- 04EN 13087-4:2012 (E) 3 Foreword This document (EN 13087-4:2012) has been prepared by Technical Committee CEN/TC 158 “Head protection”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of a
16、n identical text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdrawn at the latest by August 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be
17、held responsible for identifying any or all such patent rights. This document supersedes EN 13087-4:2000. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relat
18、ionship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. Annex B provides details of significant technical changes between this European Standard and the previous edition. This European Standard consists of the following ten parts: Part 1 : Conditions and c
19、onditioning; Part 2 : Shock absorption; Part 3 : Resistance to penetration; Part 4 : Retention system effectiveness; Part 5 : Retention system strength; Part 6 : Field of vision; Part 7 : Flame resistance; Part 8 : Electrical properties; Part 9 : Mechanical rigidity1; Part 10 : Resistance to radiant
20、 heat. According to the CEN/CENELEC Internal Regulations, 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, France, Germany, Greece, Hungary, Iceland,
21、Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. 1To be published. DIN EN 13087-4:2012-04EN 13087-4:2012 (E) 4 Introduction This European Standard is intended as a supp
22、lement to the specific product standards for protective helmets (helmet standards). Test methods may be applicable to complete helmets or parts thereof, and may be referenced in the other helmet standards. Performance requirements are given in the appropriate helmet standard, as are such prerequisit
23、es as the number of samples, preconditioning, preparation of samples for the tests, sequence and duration of testing and assessment of test results. If deviations from the test method given in this standard are necessary, these deviations will be specified in the appropriate helmet standard. DIN EN
24、13087-4:2012-04EN 13087-4:2012 (E) 5 1 Scope This European Standard specifies methods of test for protective helmets. The purpose of these tests is to enable assessment of the performance of the helmet as specified in the appropriate helmet standard. This European Standard specifies the method of te
25、st for retention system effectiveness. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendmen
26、ts) applies. EN 960:2006, Headforms for use in the testing of protective helmets EN 13087-1, Protective helmets Test methods Part 1: Conditions and conditioning 3 Terms and definitions For the purposes of this document, the terms and definitions given in this standard may be found in the appropriate
27、 helmet standard. 4 Prerequisites In order to implement this part of EN 13087, at least the following parameters shall be specified in the appropriate helmet standard: a) performance requirements; b) number of samples; c) preparation of samples; d) sequence of conditioning; e) sequence of tests; f)
28、direction of application of the force; g) sizes of the headforms; h) impact energy, including tolerance, of the falling mass; i) fitting instructions. 5 Method 5.1 General Testing shall be performed in the ambient conditions specified in EN 13087-1. DIN EN 13087-4:2012-04EN 13087-4:2012 (E) 6 This t
29、est may be performed so that the pull is exerted from the front and/or from the rear. The method to be used is specified in the helmet standard. 5.2 Principle The helmet is mounted on a test headform and then subjected to a sudden force applied at the front and/or the rear edge of the helmet, tendin
30、g to rotate it on the headform. The extent of any movement is observed. 5.3 Apparatus 5.3.1 General The apparatus shall include: a series of headforms; a rigid base to secure the headforms; a falling mass and associated guidance system; a means to measure impact speed; a steel wire. The arrangement
31、of the apparatus is shown in Figure 1. 5.3.2 Test headforms The headforms shall be in accordance with EN 960:2006, 2.2 and 3. The sizes to be used are specified in the helmet standard, but shall be selected from size designations 495, 515, 535, 555, 575, 585, 605 and 625 (equivalent to codes A, C, E
32、, G, J, K, M and O, respectively, EN 960:1994). 5.3.3 Rigid base The rigid base shall be such as to support the headform so that its central vertical axis is indeed vertical and so that during the test it does not move. 5.3.4 Falling mass and guidance system A guidance system shall be provided to en
33、able the falling mass of (10 0,1) kg to be dropped in guided fall on to the metal end stop. The guidance system shall have a total mass of (3 0,1) kg. The falling mass shall be connected to the helmet by means of a twisted steel wire of minimum diameter 3 mm running over a pulley of diameter (100 2)
34、 mm and a hook of nominal width 25 mm. The guidance system shall be such as to ensure that the falling mass falls with an impact speed of not less than 95 % of that which would theoretically obtain for a free fall. 5.3.5 Means to measure impact speed Means shall be provided to measure the speed of t
35、he falling mass at a distance of not more than 60 mm prior to impact, to within an accuracy of 1 %. The impact speed shall be measured during the commissioning of the apparatus. It need not be done for each test. DIN EN 13087-4:2012-04EN 13087-4:2012 (E) 7 5.4 Procedure Fit the helmet in accordance
36、with the fitting instructions to the smallest available headform appropriate to the helmet size. Adjust the retention system as tight as possible, by hand. If the appropriate helmet standard requires the measurement of rotation, mark a horizontal datum line on the outside of the helmet. Attach the h
37、ook over the front or rear edge of the helmet at the centre and arrange the steel wire to pass over the longitudinal vertical median plane of the helmeted headform. If the appropriate helmet standard requires the measurement of rotation, then measure to the nearest degree the angle that the helmet m
38、ay have initially rotated. Arrange for the falling mass to fall through a drop height corresponding to the required impact energy specified in the appropriate helmet standard and release the mass. Observe whether the helmet comes off the headform completely. If it does not, and if required in the ap
39、propriate helmet standard, measure to the nearest degree the angle that the helmet has rotated, this being the angle between datum line drawn on the helmet and the horizontal (final rotation). 5.5 Report Report if the helmet came off the headform completely or, alternatively, the angles of the initi
40、al (if required) and final rotations. DIN EN 13087-4:2012-04EN 13087-4:2012 (E) 8 Dimensions in millimetres Key 1 steel wire 8 central vertical axis 2 rigid base 9 reference plane 3 pulley 10 hook 4 frame 11 drop height 5 falling mass 12 headform 6 guiding system 13 metal end stop 7 datum line on th
41、e helmet Figure 1 Arrangement of test apparatus DIN EN 13087-4:2012-04EN 13087-4:2012 (E) 9 Annex A (normative) Test results Uncertainty of measurement For each of the required measurements performed in accordance with this standard, a corresponding estimate of the uncertainty of measurement shall b
42、e evaluated. This estimate of uncertainty shall be applied and stated when reporting test results, in order to enable the user of the test report to assess the reliability of the data. DIN EN 13087-4:2012-04EN 13087-4:2012 (E) 10 Annex B (informative) Significant technical changes between this Europ
43、ean Standard and EN 13087-4:2000 The significant changes with respect to the first edition of EN 13087-4 are as listed below. DIN EN 13087-4:2012-04Table B.1 Significant changes between this European Standard and EN 13087-4:2000 Clause/paragraph/table/figure ChangeClause 2 The normative references i
44、n Clause 2 and in the text have been updated. EN 960 has been dated throughout the text. 5.3.2 Update of cross references. Sizes have been extended to size designations and between brackets EN 960:1994 equivalent code letters. Annex ZA Has been updated. NOTE The technical changes referred include th
45、e significant technical changes from the EN revised but is not an exhaustive list of all modifications from the previous version. EN 13087-4:2012 (E) 11 Annex ZA (informative) Relationship between this European Standard and the Essential requirements of EU Directive 89/686/EEC Personal Protective Eq
46、uipment This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Directive 89/686/EEC Personal Protective Equipment. Once this standard is ci
47、ted in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the clauses of this standard, together with the relevant requirements given in the product standard, confers, within the limits of the scope of this standard, a presumption of conformity with the Essential Requirements 1.2.1 of Annex II of that Directive and associated EFTA regulations. DIN EN 13087-4:2012-04
