Section 408.40762. Welding drums, barrels, tanks, or other containers.

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(1) Welding operations shall not be performed on drums, barrels, tanks, or other containers until they have been cleaned of all flammable, combustible, or toxic materials or fumes.

(2)      All pipelines or other connections to drums, barrels, or tanks shall be disconnected or blanked before performing welding operations.

(3)   Hollow spaces or cavities shall be vented and either filled with water or purged with an inert gas before preheating, cutting, or welding.

(4)    An opening shall be maintained during welding and cutting to vent gases or vapors.

(5)   Welding on natural gas pipelines shall be as prescribed by the regulations of the department of transportation, 49 C.F.R. Part 192, “Minimum Federal Safety Standards for Gas Pipelines,” which are adopted by reference in R 408.40709.

History: 1980 AACS; 2005 AACS; 2015 AACS.

                    
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