230 | 1 2 3 A1 or A2 B C D E F MV70 MV71 FD15 MV72 HEAT AND FLAMES THE RISK Heat exposure can occur through either; direct contact (conduction), liquids and gas including air (convection) or through electromagnetic waves (radiation). Flame risk is caused from exposure to the stream of hot, burning gas from something on fire (flames). Accidental splattering or spraying of molten metal is also a workplace risk factor. WHO IS AT RISK? Workers in industries including: electrical utilities, petrochemical, transportation road and rail, metalworking, foundries, cement works and craftspeople. INJURIES Burn injuries can range from mild to severe and they can even be fatal. EN ISO 11612 protective clothing where there is a need for clothing with limited flame spread properties. THE TEST You must pass either A1 or A2 tests AND one other from B, C, D, E or F Optional testing and manikin testing for overall burn prediction. *This test must be carried out on fabric and seams EN ISO 14116 Protective clothing to protect against occasional and brief contact with small igniting flames reducing the possibility of the clothing burning and thereby itself constituting a hazard. THE TEST Three different categories for flame spread, Index 1, 2 and 3 as detailed below: STANDARDS EN ISO 11612 HEAT AND FLAME EN ISO 14116 LIMITED FLAME SPREAD INDEX REQUIREMENTS No flame spread No flaming debris No afterglow shall spread No flame spread No flaming debris No afterglow shall spread No hole shall form No flame spread No flaming debris No afterglow shall spread No hole shall form The afterflame must last no longer than 2 seconds TEST TYPE LEVELS Limited flame spread* Convective heat 3 levels Radiant heat 4 levels Molten aluminium splash 3 levels Molten iron splash 3 levels Contact heat 3 levels
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