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Hazardous Environments Group Definitions

Hazardous Environments Group Definitions. (USA) I-Safe Group Definitions : ·          A = Acetylene ·          B = Hydrogen, Butadiene, Ethylene Oxide, Propylene Oxide, Acrolein, or similar. ·          C = Ethyl Ether, Ethylene, Carbon Monoxide, Nitromethane, or similar.

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Hazardous Environments Group Definitions

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  1. Hazardous EnvironmentsGroup Definitions • (USA) I-Safe Group Definitions: • ·          A = Acetylene • ·          B = Hydrogen, Butadiene, Ethylene Oxide, Propylene Oxide, Acrolein, or similar. • ·          C = Ethyl Ether, Ethylene, Carbon Monoxide, Nitromethane, or similar. • ·          D = Acetone, Ammonia, Butane, Ethanol, Methane, Natural Gas, Propane, or similar. • Class 1 Division 1 is typically referred to as I-Safe • Class 1 Division 2 is typically referred to as Non-Incendive • (Europe) ATEX Group Definitions: • ·IIC = Acetylene & Hydrogen • ·IIB = Ethylene • ·          IIA = Propane • ATEX Zone 1 is typically referred to as I-Safe • ATEX Zone 2 is typically referred to as Non-Incendive http://www.ul.com/hazloc/

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