Valves; qualification for sour gas

Current as of 2026-05-04 Government source

Michigan Public Service CommissionOfficial agency material

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Rule 405. An operator shall ensure that valves that are used for sour gas service are qualified for sour gas service in accordance with the National Association of Corrosion Engineers international standard MR-175/ISO 15156, which is adopted by reference in R 460.20605.#

History: 1998-2000 AACS; 2003 AACS; 2009 AACS; 2010 AACS; 2022 AACS.#