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ASME B31.3-2016 Table A323.4.3 Recommended Temperature Limits for Thermoplastics Used as Linings Materials Minimum Maximum [Note(1)] °c °F °c °F PFA —198 —325 260 500 PTFE —198 —325 260 500 FEP —198 —325 204 400 ECTFE —198 —325 171 340 ETFE —198 —325 149 300 PVDF —18 0 135 275 PP —18 0 107 225 PVDC —18 0 79 175 GENERAL NOTE: These temperature limits are based on material tests and do not necessarily reflect evidence of successful use as piping component linings in specific fluid services at these temperatures. The designer should consult the manufacturer for specific applications, particularly as temperature limits are approached. NOTE: (1) See para.A326.4 for definitions of materials. (16) A326.4 Abbreviations in Table A326.1 and PART 9 Appendix B FABRICATION, ASSEMBLY, AND ERECTION The abbreviations tabulated below are used in this Chapter to replace lengthy phrases in the text, in the A327 GENERAL titles of standards in Table A326.1, and in the Specification Index for Appendix B.Those marked with Piping materials and components are prepared for an asterisk (*) are in accordance with ASTM D1600, assembly and erection by one or more of the fabrication Standard Terminology for Abbreviated Terms Relating processes in paras.A328,A329,A332,and A334.When to Plastics. Those items marked with a dagger (t) are any of these processes is used in assembly and erection, in accordance with ASTM F412,Standard Terminology requirements are the same as for fabrication. Relating to Plastic Piping Systems. Abbreviation Term ABS*t Acrylonitrile-butadiene-styrene plastics A328 BONDING OF PLASTICS BPS Bonding Procedure Specification Paragraph A328 applies only to j oints in thermoplastic, CPVC*t Chlorinated poly(vinyl chloride)plastics DRt Dimension ratio RTR, and RPM piping. Bonding shall conform to DS Design stress paras.A328.1 through A328.7 and the applicable require- E-CTFE* Ethylene-chlorotrifluoroethylene ments of para. A311. ETFE* Ethylene-tetrafluoroethylene copolymer FEP* Perfluoro(ethylene-propylene)copolymer A328.1 Bonding Responsibility HDBS Hydrostatic Design Basis Stress g p y HDSt Hydrostatic Design Stress Each employer is responsible for the bonding done by PB*t Polybutylene-1 PE*t Polyethylene personnel of his organization and,except as provided in PEX Cross-linked polyethylene paras.A328.2.2 and A328.2.3,shall conduct the required PFA* Perfluoro(aikoxyalkane) performance qualification tests to qualify bonding pro- PP*t Polypropylene cedure specifications (BPS) and bonders or bonding PQR Procedure Qualification Record operators. PRt Pressure rating PTFE* Polytetrafluoroethylene PVC*t Poly(vinyl chloride) A328.2 Bonding Qualifications PVDC* Poly(vinylidene chloride) PVDF* Poly(vinylidene fluoride) A328.2.1 Qualification Requirements RPM Reinforced plastic mortar (a) Qualification of the BPS to be used, and of the RTP Reinforced thermosetting plastic performance of bonders and bonding operators, is RTR Reinforced thermosetting resin SDRt Standard dimension ratiosqualify required. To a BPS all tests and examinations SIDRt Standard inside diameter dimension ratio specified therein and in para. A328.2.5 shall be com- WPS Welding Procedure Specification pleted successfully.