Evaluating Compatibility of Products with CPVC Piping

PROPOSED UL 1821B

Scope

The new UL 1821B Standard covers test methods and performance requirements to investigate the compatibility between CPVC piping complying with the requirements in ANSI/UL 1821, Standard for Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service, and products that the piping may contact.