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INTERNAL PLUMBING CODE PRESENTATION BASED ON …

Testing of plastic schedule 40 DWV • 105.3.4 Allowing the testing of plastic schedule 40 DWV piping systems with 5 psi maximum of air. For safety purposes, when testing with air, a listed 6psi relief valve is required. • Co-extruded ABS and PVC schedule 40 cellular core piping systems with referenced standards ASTM F1488 and ASTM F891 shall

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