EN 812-2012 en Industrial bump caps《工业防护帽》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 812:2012Industrial bump capsBS EN 812:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 812:2012. Itsupersedes BS EN 812:1998 which

2、 is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PH/6/1, Industrial safety helmets.A list of organizations represented on this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 c

3、ontract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 68424 1ICS 13.340.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the au

4、thority of theStandards Policy and Strategy Committee on 29 February 2012.Amendments issued since publicationDate Text affectedBS EN 812:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 812 February 2012 ICS 13.340.20 Supersedes EN 812:1997English Version Industrial bump caps Casquettes anti

5、-heurt pour lindustrie Industrie-Anstokappen 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 altera

6、tion. 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

7、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, Estonia

8、, 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION

9、 EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 812:2012: EBS EN 812:2012EN 812:2012 (E) 2 Contents Page Foreword . 41 Scope 52 Normative ref

10、erences . 53 Terms and definitions . 54 Physical requirements 74.1 Materials and construction 74.2 Cradle . 74.3 Comfort band or sweatband 74.4 Retention 74.5 Headband/nape strap 74.6 Chin strap 84.7 Ventilation 84.8 Accessories . 85 Performance requirements 85.1 Mandatory requirements 85.1.1 Impact

11、 protection 85.1.2 Resistance to penetration 85.1.3 Chin strap anchorages . 85.2 Optional requirements 85.2.1 Very low temperature (20 C or 30 C) 85.2.2 Resistance to flame 95.2.3 Electrical properties 96 Test requirements . 96.1 Samples . 96.2 Conditioning for testing . 106.2.1 Temperature conditio

12、ning cabinet 106.2.2 Low temperature . 106.2.3 High temperature 106.2.4 Water immersion . 106.2.5 Artificial ageing . 106.2.6 Very low temperature 116.3 Testing atmosphere 116.4 Headforms . 116.4.1 Construction 116.4.2 Selection of size 116.5 Impact protection 116.5.1 Principle . 116.5.2 Apparatus 1

13、16.5.3 Procedure 126.6 Resistance to penetration 126.6.1 Principle . 126.6.2 Apparatus 126.6.3 Procedure 136.7 Chin strap anchorages . 136.7.1 Principle . 136.7.2 Apparatus 136.7.3 Procedure 136.8 Resistance to flame 146.8.1 Principle . 14BS EN 812:2012EN 812:2012 (E) 3 6.8.2 Apparatus 146.8.3 Test

14、procedure 146.9 Electrical properties 146.9.1 Test 1 146.9.2 Test 2 156.9.3 Test 3 157 Marking and information 157.1 Markings on the bump cap 157.2 Additional information to be supplied by the manufacturer 16Annex A (informative) Recommendations for materials and construction 18Annex B (informative)

15、 Alternative method for artificial ageing . 19Annex C (informative) Significant technical changes between this European Standard and EN 812:1997 . 20Annex ZA (normative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC Personal Protective Equipmen

16、t 21Bibliography . 22BS EN 812:2012EN 812:2012 (E) 4 Foreword This document (EN 812:2012) has been prepared by Technical Committee CEN/TC “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 i

17、dentical 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 hel

18、d responsible for identifying any or all such patent rights. This document supersedes EN 812:1997. 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

19、 with EU Directive(s), see informative Annex ZA, which is an integral part of this document. Annex C 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 t

20、he following countries are bound to implement this European 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, Romani

21、a, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 812:2012EN 812:2012 (E) 5 1 Scope This European Standard specifies physical and performance requirements, methods of test and marking requirements for industrial bump caps. Industrial bump caps are intended to pr

22、ovide protection to the wearer against the effects of striking his head against hard, stationary objects with sufficient severity to cause laceration or other superficial injuries. They are not intended to provide protection against the effects of falling or thrown objects, or moving or suspended lo

23、ads. NOTE An industrial bump cap should not be confused with an industrial safety helmet, as specified in EN 397. 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 refere

24、nces, the latest edition of the referenced document (including any amendments) applies. EN 960:2006, Headforms for use in the testing of protective helmets ISO 6487:2002, Road vehicles Measurement techniques in impact tests Instrumentation 3 Terms and definitions For the purposes of this document, t

25、he following terms and definitions apply. 3.1 industrial bump cap headgear, hereinafter referred to as a “bump cap”, intended to protect the wearers head against injury caused by striking the head against hard, stationary objects NOTE It may consist of the items defined in 3.2, 3.3, 3.4, 3.5 and 3.6

26、. 3.2 shell hard, smoothly finished material that may provide the general outer form of the bump cap NOTE It may be fitted with external coverings, which may provide a means of maintaining the bump cap on the head. 3.3 harness 3.3.1 assembly complete assembly that may provide a means: a) of maintain

27、ing the bump cap in position on the head; b) of absorbing kinetic energy during an impact. NOTE A harness may include the items defined in 3.3.2, 3.3.3, 3.3.4 and 3.3.5. BS EN 812:2012EN 812:2012 (E) 6 3.3.2 headband part of the harness, if fitted, completely or partly surrounding the head above the

28、 eyes at approximately the largest horizontal circumference of the head NOTE The headband may include a nape strap. 3.3.3 nape strap adjustable or self-adjusting strap that fits behind the head below the plane of the headband NOTE A nape strap may be an integral part of the headband, and may be elas

29、ticated. 3.3.4 cradle assembly of parts of the harness, if fitted, in contact with the head, excluding the headband and nape strap, if fitted NOTE The cradle may be either fixed or adjustable. 3.3.5 comfort band or sweatband accessory to cover at least the inner front surface of the headband, if fit

30、ted, to improve wearer comfort 3.4 ventilation holes holes provided in the shell, and/or external coverings, which can allow circulation of air inside the bump cap 3.5 chin strap strap which fits under the chin to help secure the bump cap on the head 3.6 chin strap anchorages means by which the mate

31、rial of the chin strap is attached to the bump cap NOTE This includes, for example: the component(s) fitted to the ends of the chin strap material for this purpose; that part of the bump cap shell or of the headband where the chin strap is attached. 3.7 bump cap accessories any additional parts for

32、special purposes NOTE Examples of accessories are chin strap, neck protector, nape strap, external coverings. 3.8 wearing height vertical distance from the lower edge of the headband, if fitted, (or from the lower edge of the bump cap if there is no headband) to the highest point of the headform on

33、which the bump cap is mounted, measured either at the front (midway between the sides of the headform) and at the side (midway between the front and back of the headform) whichever gives the greater distance BS EN 812:2012EN 812:2012 (E) 7 4 Physical requirements 4.1 Materials and construction The b

34、ump cap may consist of a smooth shell, which may be enclosed by an outer covering. The bump cap shall incorporate means to absorb the energy of an impact. NOTE Recommendations for materials and construction of bump caps are given in Annex A. For those parts of the bump cap that come into contact wit

35、h the skin, materials which are known to be likely to cause skin irritation or any adverse effect on health shall not be used. There shall be no sharp edge, roughness or projection on any part of the bump cap which is in contact, or potential contact, with the wearer when the bump cap is worn, such

36、as is likely to cause injury to the wearer. Any part of the bump cap which can be adjusted, or removed by the wearer for the purpose of replacement, shall be so designed and manufactured as to facilitate adjustment, removal and attachment without the use of tools. Any adjustment system incorporated

37、within the bump cap shall be so designed and manufactured as not to become incorrectly adjusted without the wearers knowledge under the foreseeable conditions of use. 4.2 Cradle If the bump cap is fitted with a cradle incorporating textile tapes, their individual widths shall be not less than 15 mm,

38、 and the total of the widths of the tapes radiating from their intersection shall be not less than 72 mm. NOTE Further reference to textile tapes is made in Annex A. 4.3 Comfort band or sweatband If a sweatband is provided, it shall cover the inner front surface of the headband, if fitted, for a len

39、gth of not less than 100 mm each side of the centre of the forehead. The length shall be measured with a flexible measure along a line (10 1) mm above the lower edge of the headband. It shall have a width not less than that of the headband over the length which it covers. NOTE Recommendations regard

40、ing characteristics of the sweatband, if fitted, are given in Annex A. 4.4 Retention Means shall be provided to secure the bump cap on the wearers head. Any one of the following is deemed to satisfy this requirement: a) external coverings to the shell which incorporate an elasticated rear section, p

41、assing below the plane of the headband; b) a nape strap; c) a chin strap or means of attaching one. 4.5 Headband/nape strap The length of the headband or the nape strap, if fitted, shall be adjustable in increments of not more than 5 mm. BS EN 812:2012EN 812:2012 (E) 8 4.6 Chin strap Unless specific

42、 provision is made for the bump cap to be retained on the head by other means, the bump cap or the harness shall be fitted with a chin strap or with means of attaching one. Any chin strap supplied with the bump cap shall be not less than 10 mm wide when un-tensioned and shall be attached either to t

43、he shell or to the headband, if fitted. 4.7 Ventilation If the bump cap is provided with holes for ventilation purposes, the total area of such holes shall be not less than 150 mm2and not more than 450 mm2. NOTE 1 Means of closing the ventilation holes may be provided. NOTE 2 If such means are provi

44、ded, the holes should be opened to the maximum extent when the above measurement is performed. NOTE 3 Recommendations regarding design for ventilation are given in Annex A. 4.8 Accessories For the fixing of bump cap accessories, specified in the information accompanying the bump cap in accordance wi

45、th 7.2.3, the required fixing devices, or appropriate holes in the bump cap, shall be provided by the bump cap manufacturer. 5 Performance requirements 5.1 Mandatory requirements 5.1.1 Impact protection When a bump cap is tested by the method given in 6.5, the force transmitted to the headform shall

46、 not exceed 15,0 kN. This requirement shall be satisfied by bump caps treated in accordance with the appropriate conditioning processes given in 6.2, as specified by the list of tests given in 6.1. 5.1.2 Resistance to penetration When a bump cap is tested by the method given in 6.6, the point of the

47、 striker shall not contact the surface of the headform. This requirement shall be satisfied by bump caps treated in accordance with the appropriate conditioning processes given in 6.2, as specified by the list of tests given in 6.1. 5.1.3 Chin strap anchorages When a bump cap is fitted with chin str

48、ap anchorages, these shall be tested in accordance with 6.7. The artificial jaw shall be released at a force of not less than 150 N and not more than 250 N, due to failure only of the anchorages. 5.2 Optional requirements 5.2.1 Very low temperature (20 C or 30 C) When tested for impact protection by

49、 the method given in 6.5, the requirement of 5.1.1 shall be satisfied by one bump cap which has been conditioned in accordance with 6.2. BS EN 812:2012EN 812:2012 (E) 9 When tested for resistance to penetration by the method given in 6.6, the requirement of 5.1.2 shall be satisfied by a second bump cap, which has been condi