Section 460.20405. Valves; qualification for sour gas service.  


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  • An operator shall ensure that valves used for sour gas service are qualified for sour gas service  in   accordance  with  the  national association of corrosion engineers international standard MR0175/ISO 15156, 2004-2007, which is adopted by reference in R 460.20605.

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