SP-86-2009
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SP-86-2009

Guidelines for Metric Data in Standards for Valves, Flanges, Fittings, and Actuators (incl. 2011 Errata Sheet)

This Standard Practice provides recommended rules and guidelines to be followed by MSS Technical Committees while developing or revising Standard Practices or other documents in which there is a need to use both inch-pound and metric units. Where both units are included, the standards developing group determines the order in which they are presented. When used, the alternate units shall be either:
a) In textual references, immediately following the preferred unit in the text and be separated by parentheses or;
b) In tabular references, included in separate columns or presented at the end of the document in the form of an annex.
Scope:
This Standard Practice establishes recommended rules and guidelines for determining metric units and numbers when needed for use in MSS valve, flange, fitting, and actuator Standard Practices.

     


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May 25, 2019

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