FIRE RETARDANT EN STANDARDS AND MATERIALS EN ISO 11611 EN ISO 14116 EN1149-1 EN ISO 11612 PROTECTIVE CLOTHING FOR USE IN WELDING AND ALLIED PROCESSES PROTECTION AGAINST HEAT AND FLAME: PROTECTIVE CLOTHING FOR INDUSTRIAL WORKERS EXPOSED TO HEAT: EXCLUDING FIREFIGHTERS AND WELDERS CLOTHING PROTECTIVE CLOTHING - ELECTROSTATIC PROPERTIES General requirements. Does not cover clothing worn for special welding jobs. Limited flame spread materials and material assemblies. This standard refers only to the materials or material assemblies from which garments with limited flame spread properties are made. Such information may appear in the manufacturer’s literature. Markings in the form: EN ISO 14116 Flame spread index/Durability. Flame Spread Index - 1, 2 or 3 - Limited flame spread index (3 is best). If index 1 materials are present: Use only over EN ISO 14116 Index 2 or 3 material and DO NOT use next to the skin. Surface resistivity (test methods and requirements). A - Limited flame spread, and at least one of: B# - Convective heat resistance (# = 1 to 5) C# - Radiant heat resistance (# = 1 to 4) D# - Molten aluminium splash (# = 1 to 3) E# - Molten iron splash (# = 1 to 3) F# - Contact Heat (# = 1 to 3) In all cases, higher number denotes better performance. If no number is given, no protection is claimed. ISO 11612 Example Marking A1 B1 C1 139
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