1、CEN EN*381-2 95 3404589 OL12OL7 TO4 BRITISH STANDARD Protective clothing for users of hand-held chain saws Part 2. Test methods for leg protectors The European Standard EN 381-2 : 1995 has the status of a British Standard BS EN 381-2 : 1995 CEN ENx3L-2 95 3404589 OlE20l 7YO BS EN 381-2 : 1995 Commit
2、tees responsible for this British Standard The preparation of this British Standard was entrusted to %chnical Committee PSM/34, Clothing for protection against hazards, upon which the following bodies were represented: Amalgamated Engineering Union Association of Consulting Scientists British Clothi
3、ng Industry Association British Leather Confederation British Marine Industries Federation British Mountaineering Council British Plastics Federation British Textile Confederation British Textile Technology Group Building Employers Confederation Chartered Institute of Marketing Chemical Industries A
4、ssociation Chief and Assistant Chief Fire Officers Association Confederation of British Wool Textiles Limited Engineering Equipment and Materials Users Association Ergonomics Society Health and Safety Executive Home Office Industrial Safety (Protective Equipment) Manufacturers Association Institute
5、of Occupational Hygienists Institute of Wastes Management Iron and Steel Trades confederation London Regional Transport Made-up Textiles Association Ministry of Defence National Joint Council for the Building Industry (operatives side) SATRA Footwear Technology Centre Textile Distributors Associatio
6、n Textile Research Council (FCRA) Textile Services Association Ltd. Trades Union Congress The following bodies were also represented in the drafting of the standard, through subcommittees and panels: This British Standard, having been prepared under the direction of the Health and Safety Sector Boar
7、d, was published under the authority of the Standards Board and comes into effect on 15 November 1995 O BSI 1995 The following BSI references relate to the work on this standard : Committee reference PSM/34 Draft for comment 90/44678 DC ISBN O 680 24666 6 Arboncultural Association Association of Pro
8、fessional Foresters British Chainsaw Association Consumer Policy Committee of BSI Department of Trade and Industry (Consumer Safety Unit, CA Division) Forestry Commission Garden Machinery Association Hire Association Europe National Association of Glove Manufacturers National Farmers Union Royal Soc
9、iety for the Prevention of Accidents Safety Equipment Distributom Association Timber Growers United Kingdom Amendments issued since publication lkxt affected CEN EN*38L-2 95 3404589 OL12OL9 887 BS EN 381-2 : 1995 Contents me Committees responsible Inside front cover National foreword 11 Foreword 2 %
10、xt of EN 381-2 3 i - CEN ENa38l-2 95 W 3404589 Oll2020 5T9 W BS EN 381-2 : 1995 National foreword This British Standard has been prepared by lchnical Committee PSM/34, and is the English language version of EN 381-2 : 1995 Protective clothing for users of hand-held chain saws Part 2: nst methods fw
11、leg protectors, published by the European Committee for Standardization (CEN). Cross-references EN 340 : 1993 Publication referred to EN381-1 1993 EN 381-5 : 1995 IS0 5077 : 1984 IS0 6330 : 1984 Corresponding British Standard BS EN 340 : 1993 Protective clothing. Gema1 requirements BS EN 381 Protect
12、ive clothing for users of hand-held chain saws part 1 : 1993 nst rig for checking resistance to cutting by a chain saw Part 5 : 1995 Requirements for leg protectors BS EN 25077 : 1994 Textiles - Determination of dimensional change in washing and drying BS EN 26300 : 1994 Textiles. Domestic washing a
13、nd drying procedures for textile testing EN 381-2 was produced as a result of international discussions in which the UK took an active part. Compliance with a British Standard does not of itself confer immunity from legal obligations. ii CEN EN*38L-2 95 3404589 OLL202L 435 W EUROPEAN STANDARD NORME
14、EUROPENNE EUROPISCHE NORM EN 381-2 April 1995 ICs 13.340.10 Descriptors: Personal protective equipment, work clothing, accident prevention, protective clothing, legs, chain saws, shock resistance, tests, specifications English version Protective clothing for users of hand-held chain saws Part 2: Tes
15、t methods for leg protectors Vtements de protection pour utilisateurs de scies chaine tenues la main Partie 2: Mthodes dessai pour protge-jambes Schutzkleidung fr die Benutzer von handgefhrten Kettensgen Teil 2 : Prfverfahren fr Beinschutz This European Standard was approved by CEN on 1994-11-15. CE
16、N members are bound to comply with the CENKENELEC 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 appl
17、ication to the Central Secretariat 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 Central Secretariat has
18、the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standa
19、rdization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1995 All rights of reproduction in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 381-2 : 1995 E CEN ENs381-2 95 3404589 OLL2022
20、 371 Page 2 EN 381-2 : 1995 Foreword This European Standard has been prepared by the Technical Committee CEN/TC 162, Protective clothing including hand and arm protection and lifejackets, the secretariat of which is held by DIN. This European Standard has been prepared under a mandate given to CEN b
21、y the European Commission and the European Free Trade Association) and supports essential requirements of EC Directive 89/686/EEC. For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard. This European Standard shall be given the status of a nation
22、al standard, either by publication of an identical text or by endorsement, at the latest by October 1995, and conflicting national standards shall be withdrawn at the latest by October 1995. According to the CENKENELEC Internal Regulations) the following countries are bound to implement this Europea
23、n Standard: Austria, Belgium, Denmark, Finland) France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal) Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword O Introduction 3 1 Scope 3 2 Normative references 3 3 Definitions 3 3.1 Front (of a leg p
24、rotector) 3 3.2 Rear (of a leg protector) 3 4 Test specimens 4 4.1 Number of test specimens 4 4.2 5 Pretreatment 6 Testing for dimensional change 7 Checking of protective coverage 8 Testing of resistance to cutting 8.1 Purpose of testing 8.2 Test specimens 8.3 Apparatus 8.4 Mounting of test specimen
25、s 8.5 Test procedure 8.5.1 Positions 8.5.2 Number of cuts 8.5.2.1 8.5.2.2 Design C 8.5.3 Chain speed 9 Testing of attachment 9.1 General 9.2 Test specimens 9.3 Apparatus 9.4 Test procedure 10 Test report Annex ZA (informative) Clauses of this European Standard addressing essential requirements or ot
26、her provisions of EU Directives Size designation of test specimens Design A and design B 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 7 8 CEN EN838L-2 95 .I 3404589 0312023 208 .I O Introduction This European Standard forms part of a series concerned with personal protective equipment designed to protect
27、 against the risks arising from the use of hand-held chain saws. No personal protective equipment can ensure a 100 % protection against cutting from a hand-held chain saw. Nevertheless, experience has shown that it is possible to design protective clothing which offers a certain degree of protection
28、. Different functional principles may be applied in order to give protection. These include: a) chain slipping: on contact the chain does not cut the material; b) clogging: fibres are drawn with the chain into the drive sprocket and block chain movement; c) chain braking: fibres have a high resistan
29、ce to cutting and absorb rotational energy, thereby reducing the chain speed. Often more than one principle is applied. 1 Scope This European Standard Part 2 specifies the test methods to be used to assess the resistance of leg protectors to cutting by hand-held chain saws and other properties. 2 No
30、rmative references This European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions
31、 of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. IS0 3175 : 1979 Textiles - Detmination of dimensional change on dry cleaning in perchloroethylene - M
32、achine method Textiles - Preparation, marking and measuring of fabric specimens and garrnents in tests for detmination of dimensional change IS0 3759 : 1984 IS0 5077 : 1984 IS0 5082 : 1982 IS0 6330 : 1984 EN 340 : 1993 EN 381-1 1993 EN 381-5 : 1995 Page 3 EN 381-2 : 1995 Textiles - Determination of
33、dimensional change in washing and drying Rxtiles - Woven fabrics - Determination of breaking strength - Grab method and drying procedures for textile Protective clothing - General requirements Protective clothing for usem of hand-held chain saws - Part 1: Test rig for testing resistance to cutting b
34、y a chain saw Protective clothing for mers of hand-held chain saws - Part 5: Requirements for kg protectors lkxtiles - Domestic Washing testing 3 Definitions For the purposes of this standard the following definitions apply. 3.1 Front (of a leg protector) The forward 50 X of the leg circumference. 3
35、.2 Rear (of a leg protector) The backwards 50 % of the leg circumference. NOTE. Depending upon design and construction, and due to many layers of clogging material, it may be difficult to establish the front and the rear of a leg protector. It is nevertheless of great importance to establish the fro
36、nt and the rear before pretreatment and testing. CEN EN*:381-2 95 3404589 0332024 I144 = Page 4 EN 381-2 : 1995 4 lkst specimens 4.1 Number of test specimens For the design of EN 381-5 in normal cases the total number of test specimens for testing are as follows. Design A and B I a) If only cleaned
37、by washing: four pairs of complete leg protectors. b) If only cleaned by dry-cleaning: four pairs of complete leg protectors. c) If cleaned both by washing and dry-cleaning: eight pairs of complete leg protectors. Depending on construction and pretreatment more test specimens may be needed. Design C
38、 a) If only cleaned by washing: five pairs of complete leg protectors. b) If only cleaned by dry-cleaning: five pairs of complete leg protectors. c) If cleaned both by washing and dry-cleaning: ten pairs of complete leg protectors. Depending on construction and pretreatment more test specimens may b
39、e needed. It is allowable to use the same test specimens for cutting as were used for testing dimensional change. 4.2 Size designation of test specimens For trousers the size designation according to table 1 of EN 340 : 1993 shall be: waist girth 92 to 96. For other leg protectors a size designation
40、 comparable to waist girth 93 shall be chosen. 5 Pretreatment Except in the specific cases detailed below, all the test specimens are washed and dried 5 times before testing. This washing shall be according to procedure 2 A of IS0 6330 and the drying by tumble-drying at a temperature not exceeding 7
41、0 OC (procedure E). Exceptions to this treatment are permitted in the following cases. a) Where the leg protectors are marked as unsuitable for washing, but suitable for dry-cleaning. In such cases, the test specimens shall be dry-cleaned five times before testing. In principle the dry-cleaning shal
42、l be performed in accordance with the conditions described in 9.1 Process for normal materials of IS0 3175 : 1979, i.e. using conditioned test specimens, perchloroethylene with surfactant, addition of emulsified water, cleaning for 15 minutes at (30 f 3) OC , draining and extracting, rinsing for 5 m
43、inutes with pure solvent, and draining and final extraction. Tumble dry with an outlet temperature not exceeding 60 OC. No restorative finishing procedure. b) Where the test specimens are marked as suitable for both washing and dry-cleaning. In such cases, the test shall be carried out on both washe
44、d test specimens and dry-cleaned test specimens, (2 sets of test specimens). c) Where the test specimens are marked as unsuitable for tumble-drying. In such cases, the test specimens shall be washed by the method described above, then line-dried (procedure A of IS0 3175). 6 Testing for dimensional c
45、hange Number of test specimens: one test specimen for each pretreatment. Test procedure: the test procedure for determination of dimensional stability in washing and drying as stated in IS0 6330 and following the manufacturers care labelling regarding cleaning information. One test specimen shall be
46、 subjected to five washing processes, or the alternative processes mentioned under 5a, 5b or 5c. After each washing the leg protectors shall be reshaped by hand, but not reshaped by ironing. Dimensional change is assessed in accordance with IS0 3759 for measuring, IS0 5077 for washing and IS0 3175 f
47、or dry-cleaning, where it is noted that complete garments are used as test specimens. Figure 2 in IS0 3759 is representative for the measurements with the addition that the measurements shall be made at a place with protective material. During measurement of L and representing length and width, the
48、leg protectors shall be stretched with a force of 20 N. This can be done with a line load for L and a width-stretcher for W L and W shall be measured with an uncertainty of measurement of f 5 mm. The line load of 20 N shall be applied between the waist and bottom of the leg protector leg, and it sha
49、ll be applied through at least 3 clamps in each end, whereby the load is distributed. The clamps shall in the bottom fix to protective padding. The width-stretcher shall stretch the leg protector leg over a distance of 500 mm with a force of 20 N. distances CEN EN*381-2 95 111 3404589 OLL2025 080 7 Checking of protective coverage The coverage is measured on the pretreated test specimen used for testing of dimensional change. For trousers the following procedure is recommended. Establish the front and the rear of the leg protector. It is su
