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In addition, this Standard Practice was balloted and approved by an ANSI/MSS Consensus Committee (users, suppliers, others) and by ANSI itself as a revised. This Standard Practice was developed by a cooperative effort of representatives of pipe hanger manufacturers.
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Standards and codes are written and revised by 25 technical committees and address topics such as valves, valve actuators, pipe fittings, flanges, and pipe hangers. ASME B89.3.4-2010 R2019 017 Current Edition Approved by ANSI: February 2018. The 2009 edition of SP-58 was originally ANSI-approved and published in 2011. MSS is the only organization in the world dedicated exclusively to the technical needs of the valve and fittings industry. This document has been substantially revised from the previous1989 edition, INCLUDING THE ADDITION OF INFORMATION FROM ANSI/MSS SP-69, MSS SP-77, MSS SP-89, AND MSS SP-90. All MSS references and quotes in this catalogue are extracted from ANSI / MSS SP-58 (2009) with permission of the publisher, The Manufacturers Standardization Society.