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M00012773
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MSS SP-140-2021 Quality Standard Practice for Preparation of Valves and Fittings for Silicone-Free Service
standard by Manufacturers Standardization Society, 01/01/2022
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Full Description
SCOPE
1.1 This Standard Practice establishes general requirements for valves and fittings for use in silicone-free service requiring an increased level of cleanliness. Specific requirements include:
a) Cleaning
b) Assembly and Testing of Valves
c) Inspection and Acceptance
d) Packaging
e) Marking
Piping and flanges are outside the scope of this Standard Practice. However, flanges are covered only if they are integral to the valve or fitting.