LATEST RELEASE: September 2021 MSS PUBLISHES REVISED STANDARD FOR COPPER-NICKEL FITTINGS MSS announces that SP-129-2021, Copper-Nickel Fittings, has been revised and published … September 2021 MSS PUBLISHES REVISED “FINISH” STANDARD FOR CONTACT FACES OF PIPE FLANGES AND CONNECTING-END FLANGES OF VALVES AND FITTINGS MSS announces that SP-6-2021, Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings, has been revised and published …
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SP-6-2021
SP-45-2020
SP-51-2021
SP-53-2021
SP-60-2021
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Active American National Standard Projects (ANSI/MSS)
Updated: September 2021 Opened: September 2020 Project: 20-04-ANS Committee: C-304 Standard: SP-138-2014 Action: Revise QUALITY STANDARD PRACTICE FOR OXYGEN CLEANING OF VALVES AND FITTINGS (ANSI-APPROVED AMERICAN NATIONAL STANDARD) In MSS committee ballot review - no further ANSI action needed at this time (11/25/2020).
Updated: September 2021 Opened: October 2020 Project: 20-20-ANS Committee: C-409 Standard: SP-135-2016 Action: Revise HIGH PRESSURE KNIFE GATE VALVES (ANSI-APPROVED AMERICAN NATIONAL STANDARD) In MSS re-balloting due to ANSI committee ballot negative vote (4/5/2021).
Active MSS Standard Projects (New Standards)
Updated: September 2021 Opened: February 2009 Project: 09-16 Committee: C-310 Standard: New SP Action: New MODIFICATION OF QUARTER TURN VALVES In committee ballot results review (8/12/2021).
Updated: September 2021 Opened: February 2010 Project: 10-05 Committee: C-403 Standard: New SP Action: New CABLE SUSPENSION OF PIPE – MATERIALS, SELECTION, APPLICATION, AND INSTALLATION Committee still gathering more information to resolve negative votes from last ballot (4/28/2021).
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