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NFPA 328: Recommended Practice for the Control of Flammable and Combustible Liquids and Gases in Manholes, Sewers, and Similar Underground Structures
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What is NFPA 328?
NFPA 328: Document Scope
Covers the control of hazards presented by flammable and combustible liquids and gases found in manholes, sewers, vaults, and similar underground structures.
Official document scope
What does NFPA 328 address?
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