Welding preheating

Current as of 2026-05-04 Government source

Michigan Public Service CommissionOfficial agency material

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Rule 307. In addition to the requirements contained in 49 C.F.R.§192.235, which is adopted by reference in R 460.20606, if preheating is required, then an operator shall monitor the preheat temperature to ensure that the required preheat temperature is reached before beginning, and is maintained during, the welding operation.#

History: 1998-2000 AACS.#