BS EN 407-2004 Protective gloves against thermal risks.pdf

BRITISH STANDARD BS EN 407:2004 Protective gloves against thermal risks (heat and/or fire) The European Standard EN 407:2004 has the status of a British Standard ICS 13.340.40 ? BS EN 407:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 8 September 2004 © BSI 8 September 2004 ISBN 0 580 44422 8 National foreword This British Standard is the official English language version of EN 407:2004. It supersedes BS EN 407:1994, which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/3, Protective clothing, to Subcommittee PH/3/8, Protective gloves, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “ International Standards Correspondence Index” , or by using the “ Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 407 September 2004 ICS 13.340.40Supersedes EN 407:1994 English version Protective gloves against thermal risks (heat and/or fire) Gants de protection contre les risques thermiques (chaleur et/ou feu) Schutzhandschuhe gegen thermische Risiken (Hitze und/oder Feuer) This European Standard was approved by CEN on 24 June 2004. 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 alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application 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 the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 407:2004: E EN 407:2004 (E) 2 Contents page Foreword3 1Scope 4 2Normative references4 3Terms and definitions .4 4General requirements5 4.1General5 4.2Sizes5 4.3Abrasion .5 4.4Tear resistance.5 5Thermal performance5 5.1Burning behaviour.6 5.2Contact heat.7 5.3Convective heat .7 5.4Radiant heat .7 5.5Small splashes of molten metal.8 5.6Large quantities of molten metal .8 6Test methods8 6.1Abrasion .8 6.2Tear resistance.9 6.3Burning behaviour.9 6.4Contact heat.9 6.5Convective heat .10 6.6Radiant heat .10 6.7Small drops of molten metal.10 6.8Large quantities of molten metal .10 7Marking.11 8Information supplied by the manufacturer .11 Annex A (informative) Uncertainties of measurement and results interpretation12 Annex B (informative) Example of test method for emergency removal of fire-fighters gloves.13 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC14 Bibliography15 ? EN 407:2004 (E) 3 Foreword This document (EN 407:2004) has been prepared by 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 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2005, and conflicting national standards shall be withdrawn at the latest by March 2005. This document supersedes EN 407:1994. This document includes a Bibliography. 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 an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. ? EN 407:2004 (E) 4 1 Scope This document specifies requirements, test methods, information to be supplied and marking for protective gloves against heat and/or fire. It should be used for all gloves which protect the hands against heat and/or flames in one or more of the following forms: fire, contact heat, convective heat, radiant heat, small splashes or large quantities of molten metal. This standard is only applicable in conjunction with EN420. There are other standards relevant to specific applications, as for example fire-fighting or welding. Product tests may only give performance levels and not protection levels. 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 amendments) applies. EN 348, Protective clothing Test method: Determination of behaviour of materials on impact of small splashes of molten metal. EN 367, Protective clothing - Protection against heat and fire - Method of determining heat transmission on exposure to flame. EN 373, Protective clothing Assessment of resistance of materials to molten metal splash. EN 388, Protective gloves against mechanical risks. EN 420, Protective gloves - General requirements and test methods. EN 702, Protective clothing Protection against heat and flame Test method: Determination of the contact heat transmission through protective clothing or its materials. EN ISO 6941, Textile fabrics Burning behaviour Measurement of flame spread properties of vertically oriented specimens (ISO 6941:2003). EN ISO 6942:2002, Protective clothing Protection against heat and fire Method of test: Evaluation of materials and material assemblies when exposed to a source of radiant heat (ISO 6942:2002). 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 after flame time time in seconds from the removal of the ignition source until the extinction of the flame in the test specimen 3.2 after glow time time in seconds from the extinction of the flame up to the cessation of glowing. If the sample is not ignited by the ignition source, but it glows after the removal of the ignition source, then the after glow time is measured from the time of removal of the ignition source 3.3 melting liquefaction of the material under the influence of heat ? EN 407:2004 (E) 5 3.4 dripping detachment of molten droplets during the melting process 4 General requirements 4.1 General The protective gloves according to this standard shall meet all the applicable requirements of EN 420. 4.2 Sizes The gloves shall correspond to the relevant requirements of EN 420. Unless otherwise requested, protective gloves of performance levels 3 and 4 in all tests described in 5.1 to 5.6. shall be manufactured so that they can easily be removed in case of emergency. There is no test method for industrial protective gloves. Annex B gives an example of a test method and requirement applicable to fire-fighters gloves. 4.3 Abrasion Using the test method 6.1 the material of the protective gloves shall correspond to at least performance level 1 of the relevant clause in EN 388. 4.4 Tear resistance Using the test method 6.2 the material of the protective gloves shall correspond to at least performance level 1 of the relevant clause in EN 388. 5 Thermal performance For each of the following test methods the defined performance level depends upon the intended field of application of the glove. Only the tests which are relevant to the risks in the intended end-use application shall be carried out. ? EN 407:2004 (E) 6 5.1 Burning behaviour Using test method 6.3 the material shall correspond to the requirements of Table 1. Table 1 Performance levels for burning behaviour test Performance level After flame time s After glow time s 1 20 no requirement 2 10 120 3 3 25 4 2 5 If it melts, the material shall not drip. Furthermore the innermost surface of the glove shall be inspected. It shall show no sign of melting, otherwise it fails the test. The seam shall not come apart after an ignition time of 15 s in the test area. ? EN 407:2004 (E) 7 5.2 Contact heat Using the test method 6.4 the material shall correspond to the requirements of Table 2. Table 2 Performance levels for contact heat test Performance level Contact Temperature Tc °C Threshold time tt s 1 100 15 2 250 15 3 350 15 4 500 15 For contact heat performance levels of 3 or 4, the burning behaviour according to 6.3 shall be performed. The product shall record at least level 3 in the burning behaviour test, otherwise the maximum contact heat performance that shall be reported is level 2. 5.3 Convective heat Using the test method 6.5 the material shall correspond to the requirements of Table 3. Table 3 Performance levels for convective heat Performance level Heat transfer index HTI s 1 4 2 7 3 10 4 18 A level of performance in convective heat shall only be reported if a performance level 3 or 4 is obtained in burning behaviour. 5.4 Radiant heat Using the test method 6.6 the material shall correspond to the requirements of Table 4. Table 4 Performance levels for radiant heat Performance level Heat transfer t24 s 1 7 2 20 3 50 4 95 A level of performance in radiant heat shall only be reported if a performance level 3 or 4 is obtained in burning behaviour. ? EN 407:2004 (E) 8 5.5 Small splashes of molten metal Using the test method 6.7 the number of droplets which produce a temperature rise of 40 °C, shall correspond to the requirements of Table 5. Table 5 Levels of performance for the test of small splashes of molten metal Performance level Number of droplets 1 10 2 15 3 25 4 35 A level of performance in small splashes of molten metal shall be reported only if a performance level of 3 or 4 is obtained in burning behaviour. 5.6 Large quantities of molten metal Using the test method 6.8 the PVC foil skin-simulant shall not exhibit any smoothness or other changes to the grained surface with the relevant quantities of molten iron used. See Table 6. Table 6 Levels of performances for the test of large quantities of molten metal Performance Level Molten iron g 1 30 2 60 3 120 4 200 The test is failed if steel droplets remain stuck to the specimen, or the specimen ignites or is punctured. This test only applies to molten iron. Other metals shall be tested as required. The corresponding test results shall be given on the information supplied by the manufacturer (clause 8). 6 Test methods For multilayered gloves, the tests are carried out simultaneously on all layers, even if these in some circumstances are no longer connected. This applies to test methods described in 6.3, 6.4, 6.5, 6.6, 6.7, and 6.8. 6.1 Abrasion Test according to EN 388. EN 407:2004 (E) 9 6.2 Tear resistance Test according to EN 388. 6.3 Burning behaviour Test method according to EN ISO 6941 with the following modification: the glove is mounted vertically so that the point A (Figure 1) is at the mid point of the lower edge. Figure 1 Mounting of test glove The burner is placed below the glove so that it is in a plane with the vertical middle line of the glove or the middle finger and is perpendicular to the surface of the glove. The burner is mounted at an angle of 30°± 3° to the vertical. The distance between the tip of the burner and the lower edge of the glove or the middle finger shall be 20 mm ± 2 mm. One glove shall be tested for each ignition time, i. e. for 3 s and 15 s. The after flame time and after glow time shall be recorded for each ignition time (see Table 1). 6.4 Contact heat Test method according to EN 702. From each palm area of three gloves one sample shall be taken with a diameter of 80 mm ± 8 mm. If a reinforcement is added to the palm of the gloves, then the samples taken shall be without reinforcement. The manufacturer may additionally report test results from the parts of the glove with reinforcement in the information in clause 8. However, it shall be checked that the reinforcement is made of a material that does not melt at the test temperature. From the three single values for the threshold time tt the arithmetic mean shall be calculated and stated to the nearest whole second. EN 407:2004 (E) 10 6.5 Convective heat The test method is according to EN 367 with the following modifications: The size of the test specimen shall be (140 ± 5) mm × (140 ± 5) mm. If it is not possible to take such a specimen from a glove then a material sample shall be used, provided it was produced in the same way as the glove and includes any seam present. The specimens shall be taken from or representative of the palm and the back of the glove. Samples of multilayered assemblies shall correspond to the usual order of the layers. For each material type or material assembly, three specimens shall be tested. The arithmetic mean is calculated from the three single values and stated to t