33 50 00 Hydrocarbon Utilities

33 54 00 Hydrocarbon Utility Safety Equipment

33 54 13 Liquid Hydrocarbon Leak Detection Equipment 33 54 16 Gas Hydrocarbon Leak Detection Equipment 33 54 23 Hydrocarbon Pipeline Venting 33 54 23.13 Liquid Hydrocarbon Pipeline Venting 33 54 23.16 Gas Hydrocarbon Pipeline Venting

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