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ANSI/MSS SP-138-2014

Quality Standard Practice for Oxygen Cleaning of Valves and Fittings

This Standard Practice outlines the general requirements for cleaning, inspection, testing, and packaging of valves and fittings intended to be used for Oxygen service.1.2 Proper design and material compatibility for Oxygen systems is outside the scope of this Standard Practice.

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Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [MSS]


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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