Section 408.11262. Welding drums, barrels, tanks, or other containers.

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(1) Welding or cutting 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 pipe lines or other connections to drums, barrels, or tanks shall be disconnected or blanked.

(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) The welded construction of a transmission pipeline shall be conducted in accordance with API 1104 “Standard for Welding Pipe Lines and Related Facilities,” 1973 edition, as adopted in R 408.11202.

(6) The connection, by welding, of branches to a pipeline carrying a flammable substance shall be performed in accordance with API PSD 2201 “Welding or Hot Tapping on Equipment Containing Flammables,” 1963 edition, as adopted in R 408.11202.

History: 1979 AC; 2013 AACS.

                    
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