... industries: Oil, gas and refining Chemical and petrochemical Power Pulp and paper Water and sewage treatment Food and beverage Pharmaceutical;System IntegrationINPUTS ... in Class I, Div. 1,Groups B, C and D;Dust Ignition Proof for use in Class II/III ... III, Div. 1,Groups A, B, C, D, E, F and G,Class I, Zone 0, AEx ia IIC T4 ... Class I, Div. 2, GroupsA, B, C and D;Suitable for Class II, III, Div. 2,Groups F ...