Jul 20, 2016 1 #1 IntegrityGuy Petroleum Joined Jul 20, 2016 Messages 1 Location CA ASME 31.3 defines Category D and Category M fluid service. What does the "D" and "M" stand for?
Jul 25, 2016 #2 BSAS-GWB Mechanical Joined Jan 21, 2015 Messages 43 Location UK Check out paragraph 300.2 Definitions, for details of fluid service. I've had a cursory look in my process piping books and could not find any significance of the specific letters D and M. Perhaps somebody else is aware of the history? Upvote 0 Downvote
Check out paragraph 300.2 Definitions, for details of fluid service. I've had a cursory look in my process piping books and could not find any significance of the specific letters D and M. Perhaps somebody else is aware of the history?
Jul 25, 2016 #3 LittleInch Petroleum Joined Mar 27, 2013 Messages 23,085 Location GB Perhaps roman numbering - D is 500, M is 1000? Perhaps M stands for "more" and D for "domestic"? Remember - More details = better answers Also: If you get a response it's polite to respond to it. Upvote 0 Downvote
Perhaps roman numbering - D is 500, M is 1000? Perhaps M stands for "more" and D for "domestic"? Remember - More details = better answers Also: If you get a response it's polite to respond to it.
Jul 25, 2016 #4 bimr Civil/Environmental Joined Feb 25, 2003 Messages 9,388 Location US Perhaps the categories started out as Appendix D and M. Upvote 0 Downvote
Jul 25, 2016 #5 moltenmetal Chemical Joined Jun 5, 2003 Messages 5,504 Location CA No idea about the origins of Categories D, M or K. Upvote 0 Downvote