Which standard specifies CPVC pipe, SDR-PR?

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Multiple Choice

Which standard specifies CPVC pipe, SDR-PR?

Explanation:
CPVC pipe standards define how CPVC piping is manufactured, sized, and rated for pressure. The SDR-PR designation refers to the Standard Dimension Ratio for pressure-rated CPVC pipe. ASTM F 442 is the standard that specifically covers CPVC pressure piping, including the CPVC SDR-PR family. That makes it the correct choice. NFPA 251 is a fire-testing standard, and the other ASTM references relate to CPVC components or general CPVC specs but do not define the CPVC pipe SDR-PR in the same way.

CPVC pipe standards define how CPVC piping is manufactured, sized, and rated for pressure. The SDR-PR designation refers to the Standard Dimension Ratio for pressure-rated CPVC pipe. ASTM F 442 is the standard that specifically covers CPVC pressure piping, including the CPVC SDR-PR family. That makes it the correct choice. NFPA 251 is a fire-testing standard, and the other ASTM references relate to CPVC components or general CPVC specs but do not define the CPVC pipe SDR-PR in the same way.

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