NFPA 328: Recommended Practice for the Control of Flammable and Combustible Liquids and Gases in Manholes, Sewers, and Similar Underground Structures
NFPA 328 可燃性和易燃性液体和气体在下水道，和类似地下结构的控制推荐操作
Covers the control of hazards presented by flammable and combustible liquids and gases found in manholes, sewers, vaults, and similar underground structures.
NFPA 328: Recommended Practices of the Control of Flammable and Combustible Liquids and Gases in Manholes and Sewers and Similar Under-Structures. - Editions Prior to 1997
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