DIN EN 12492-2012 Mountaineering equipment - Helmets for mountaineers - Safety requirements and test methods German version EN 12492 2012《登山设备 登山防护帽 安全要求和试验方法》.pdf

1、April 2012 Translation by DIN-Sprachendienst.English price group 13No 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

2、13.340.20!$Uc“1885064www.din.deDDIN EN 12492Mountaineering equipment Helmets for mountaineers Safety requirements and test methodsEnglish translation of DIN EN 12492:2012-04Bergsteigerausrstung Bergsteigerhelme Sicherheitstechnische Anforderungen und PrfverfahrenEnglische bersetzung von DIN EN 12492

3、:2012-04Equipements dalpinisme et descalade Casques dalpinistes Exigences de scurit et mthodes dessaiTraduction anglaise de DIN EN 12492:2012-04SupersedesDIN EN 12492:2003-06www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 27 pages03.12

4、DIN EN 12492:2012-04 2 A comma is used as the decimal 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

5、: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Sport- und Freizeitgert (Sports Equipment Standards Committee), Working Committee NA 112-04-02 AA Sportschutzhelme. Amendments This standard differs from DIN EN 12492:2003-06 as follows: a) normat

6、ive references have been updated throughout the text; b) EN 960 is now given as a dated reference in the entire text; c) in Table 2, size designations instead of sizes for headforms are given; d) in Table 2, column 1 (size designation), the circumference of the headform at the reference plane is add

7、ed in brackets. The values have been updated; e) the key to Figure 1 has been updated; f) Annex ZA has been updated; g) the Bibliography has been updated. Previous editions DIN 7948: 1982-07 DIN EN 12492: 2000-07, 2003-02, 2003-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12492 February 2

8、012 ICS 13.340.20 Supersedes EN 12492:2000English Version Mountaineering equipment - Helmets for mountaineers - Safety requirements and test methods Equipements dalpinisme et descalade - Casques dalpinistes - Exigences de scurit et mthodes dessai Bergsteigerausrstung - Bergsteigerhelme - Sicherheits

9、technische Anforderungen und Prfverfahren 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 alteratio

10、n. 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 made by

11、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, Estonia, F

12、inland, 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 rights

13、 of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12492:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG2 Contents Page Foreword 41 Scope 62 Normative references 63 Terms and definitions .64

14、 Requirements .74.1 Construction requirements .74.1.1 Materials .74.1.2 Projections .74.1.3 Retention system .74.1.4 Ventilation .74.2 Performance requirements .74.2.1 Shock absorption.74.2.2 Penetration .84.2.3 Retention system strength .84.2.4 Retention system effectiveness (roll off) 85 Test meth

15、ods 85.1 Sampling .85.2 Helmet adjustment .85.3 Conditioning .95.3.1 General 95.3.2 U.V. ageing .95.3.3 Thermal plus conditioning 95.3.4 Thermal minus conditioning .95.4 Headforms 95.5 Shock absorption 105.5.1 Impact points . 105.5.2 Principle . 105.5.3 Apparatus 105.5.4 Procedure 125.5.5 Report 125

16、.6 Resistance to penetration 125.6.1 Impact area 125.6.2 Principle . 125.6.3 Apparatus 125.6.4 Procedure 135.6.5 Report 135.7 Retention system strength 135.7.1 Principle . 135.7.2 Apparatus 145.7.3 Procedure 145.7.4 Report 145.8 Retention system effectiveness 145.8.1 General . 145.8.2 Principle . 15

17、5.8.3 Apparatus 155.8.4 Procedure 165.8.5 Report 166 Marking and labelling . 216.1 Marking 21EN 12492:2012 (E) DIN EN 12492:2012-043 6.2 Labelling . 217 Information supplied by the manufacturer . 21Annex A (informative) Alternative test method for artificial ageing 22Annex B (informative) Significan

18、t technical changes between this European Standard and EN 12492:2000 . 23Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC Personal Protective Equipment . 24Bibliography 25EN 12492:2012 (E) DIN EN 12492:2012-044 Foreword This

19、 document (EN 12492:2012) 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 an identical text or by endorsement, at the latest by August 201

20、2, 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 held responsible for identifying any or all such patent rights.

21、 This document supersedes EN 12492:2000. 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 relationship with EU Directive(s), see informative Annex ZA, which is

22、an integral part of this document. Annex B provides details of significant technical changes between this European Standard and the previous edition. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europea

23、n Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey

24、and the United Kingdom. EN 12492:2012 (E) DIN EN 12492:2012-045 Introduction The protection given by a helmet depends on the circumstances of the accident and wearing a helmet cannot always prevent death or long term disability. A proportion of the energy of an impact is absorbed by the helmet, ther

25、eby reducing the force of the blow sustained by the head. The structure of the helmet may be damaged in absorbing this energy and any helmet that sustains a severe blow needs to be replaced even if damage is not apparent. Mountaineers helmets are fitted with a retention system to retain the helmet o

26、n the head. However, there may be a foreseeable risk that helmets could become trapped and thereby cause a risk of strangulation. EN 12492:2012 (E) DIN EN 12492:2012-046 1 Scope This European Standard specifies safety requirements and test methods for safety helmets for use in mountaineering. 2 Norm

27、ative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)

28、 applies. EN 960:2006, Headforms for use in the testing of protective helmets ISO 6487, Road vehicles Measurement techniques in impact tests Instrumentation 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 helmet for mountaineers (hereafter re

29、ferred to as helmet) headwear primarily intended to protect the upper part of a wearers head against hazards which might occur during activities carried out by mountaineers 3.2 shell hard, smoothly finished material that provides the general outer form of the helmet 3.3 helmet type helmet which is c

30、haracterized by: a) the tradename or mark; b) the materials and dimensions of the shell; c) the materials and dimensions of the protective padding; d) the materials and dimensions of the retention system 3.4 protective padding material which is used to absorb impact energy 3.5 comfort padding liner

31、material provided for the wearers comfort 3.6 sizing padding liner material used for adjustment of the helmet size 3.7 retention system complete assembly by means of which the helmet is maintained in position on the head, including any devices for adjustment of the system or to enhance the wearers c

32、omfort EN 12492:2012 (E) DIN EN 12492:2012-047 3.8 chin strap part of the retention system consisting of a strap which passes under the wearers jaw to retain the helmet in position 3.9 headform shape replacing the head which is used for testing certain characteristics Note 1 to entry: The headform i

33、s designed in accordance with EN 960:2006. 4 Requirements 4.1 Construction requirements 4.1.1 Materials For those parts of the helmet that come into contact with the skin, materials which are known to be likely to cause skin irritation or any adverse effect on health shall not be used. For a materia

34、l not in general use, advice as to its suitability shall be sought before its introduction. 4.1.2 Projections There shall be no sharp edges, roughness or projection on any part of the helmet which is in contact or potential contact with the wearer when the helmet is worn, such as is likely to cause

35、injury to the wearer. 4.1.3 Retention system The helmet shall be fitted with a retention system, including a chin strap. The retention system shall have at least three separate points of attachment to the shell. The chin strap shall be adjustable in length. That part of the chin strap which comes in

36、to contact with the jaw shall have a minimum width of 15 mm under a load of 250 N. 4.1.4 Ventilation All helmets shall be ventilated. The sum of the cross-sectional areas of such ventilation shall not be less than 4 cm2when measured on the surface of the helmet. 4.2 Performance requirements 4.2.1 Sh

37、ock absorption 4.2.1.1 Vertical energy absorption capacity When a helmet is tested by the method described in 5.5, the force transmitted to the headform shall not exceed 10 kN, for a drop height of (2 000 10) mm of the hemispherical striker described in 5.5.3.4. 4.2.1.2 Front energy absorption capac

38、ity When a helmet is tested by the method described in 5.5, the force transmitted to the headform shall not exceed 10 kN, for a drop height of (500 10) mm of the flat striker described in 5.5.3.4. EN 12492:2012 (E) DIN EN 12492:2012-048 4.2.1.3 Side energy absorption capacity When a helmet is tested

39、 by the method described in 5.5, the force transmitted to the headform shall not exceed 10 kN, for a drop height of (500 10) mm of the flat striker described in 5.5.3.4. 4.2.1.4 Rear energy absorption capacity When a helmet is tested by the method described in 5.5, the force transmitted to the headf

40、orm shall not exceed 10 kN, for a drop height of (500 10) mm of the flat striker described in 5.5.3.4. 4.2.2 Penetration When a helmet is tested on two points of impact, apart from each other as at least 50 mm, by the method described in 5.6, there shall be no contact between the striker and the hea

41、dform, for a drop height of (1 000 5) mm of the conical striker described in 5.6.3.4. 4.2.3 Retention system strength When a helmet is tested by the method described in 5.7, the maximum elongation of the whole system shall not exceed 25 mm. 4.2.4 Retention system effectiveness (roll off) When a helm

42、et is tested by the method described in 5.8, for the front way and rear way tests, the helmet shall not come off the headform. 5 Test methods 5.1 Sampling For every type of helmet, helmet samples shall be submitted for testing in the condition in which they are offered for sale, including any requis

43、ite holes in the shell and any means of attachment for accessories specified by the manufacturer. No helmet that has been subjected to testing shall be offered for sale. For every type of helmet, 11 helmet samples are required for the tests (see Table 1): 6 of the smallest size of the range of the h

44、elmet type; and 5 of the largest size of the range of the helmet type. 5.2 Helmet adjustment Before any testing on a headform, the helmet shall be adjusted to the headform size and positioned in accordance with the manufacturers instructions. The smallest headform is the smallest size, in accordance

45、 with 5.4, which is within the size range specified by the manufacturer for the particular size and type of helmet. The largest headform is the largest size, in accordance with 5.4, which is within the size range specified by the manufacturer for the particular size and type of helmet. EN 12492:2012

46、 (E) DIN EN 12492:2012-049 5.3 Conditioning 5.3.1 General Before any testing the helmet shall be conditioned in accordance with the conditioning defined in Table 1 and the relevant specifications defined in 5.3.2 to 5.3.4. Table 1 Conditioning of test samples and size of test headforms Stabilizing p

47、rocedure UV ageing Thermal plus +35 C Thermal minus -20 C Ambient +20 C Helmet N Top impact Yes Smallest Largest Largest 1-2-3 Front impact Yes Size and conditioning to be chosen by the laboratory 4 Side impact Yes Size and conditioning to be chosen by the laboratory 5 Back impact Yes Size and conditioning to be chosen by the laboratory 6 Penetration Yes Largest Smallest Smallest 7-8-9 Retention strength Yes - - - Smallest 10 Roll off front and back Yes - - - Smallest 115.3.2 U.V. ageing 5.3.2.1 Apparatus A high pressure xenon 450 Watt lamp with quartz casing, operated in accordance w