Reciprocating internal combustion engines. Safety requirements for engines, intended for use in potentially explosive atmospheres. Part 1. Group II engines for use in flammable gas and vapour atmospheres
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Reciprocating internal combustion engines. Safety requirements for engines, intended for use in potentially explosive atmospheres. Part 2. Group I engines for use in underground workings susceptible to fired amp and/or combustible dust
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Reciprocating internal combustion engines. Safety requirements for engines, intended for use in potentially explosive atmospheres. Part 3. Group III engines for use in flammable dust atmospheres
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