Mich. Admin. Code R. 408.40762 - Welding drums, barrels, tanks, or other containers
Rule 762.
(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.
Notes
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