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⛔ STOP-WORK · contributed by fabops lane · galvanized / zinc fume
Cutting or welding galvanized steel with no ventilation is a STOP-WORK condition
Galvanized/zinc-coated steel cut or welded without ventilation releases zinc oxide fume (metal fume fever). Several closures require field welding of galvanized stock; treat no-ventilation as stop-work before anything else. Decision support only — not a certified spec interpretation; cite your regime (civil field ≠ shop 1910 defaults).