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ASME B31.3-2016 Table A323.2.2 Requirements for Low Temperature Toughness Tests for Nonmetals Column A Column B Type of At or Above Listed Below Listed Minimum Material Minimum Temperature Temperature Listed nonmetallic No added requirement The designer shall have test results at or below the lowest expected service temperature, materials which assure that the materials and bonds will have adequate toughness and are suitable at the design minimum temperature. Unlisted materials An unlisted material shall conform to a published specification. Where composition, properties, and product form are comparable to those of a listed material, requirements for the corresponding listed material shall be met. Other unlisted materials shall be qualified as required in Column B. GENERAL NOTE: These requirements are in addition to the requirements of the material specification. Table A323.4.2C Recommended Temperature Limits for Reinforced Thermosetting Resin Pipe Recommended Temperature Limits Materials Minimum Maximum Resin Reinforcing °C °F °C °F Epoxy Glass fiber —29 —20 149 300 Phenolic Glass fiber —29 —20 149 300 Furan Carbon —29 —20 93 200 Furan Glass fiber —29 —20 93 200 Polyester Glass fiber —29 —20 93 200 Vinyl ester Glass fiber —29 —20 93 200 GENERAL NOTE: These temperature limits apply only to materials listed and do not reflect evidence of successful use in specific fluid services at these temperatures. The designer should consult the manufacturer for specific applications, particularly as the temperature limits are approached. (c) Reinforced Thermosetting Resins (RTR)Piping. This (d) Properties of both the base and lining materials, piping shall be safeguarded when used in toxic or flam- and of any bond between them, shall be considered mable fluid services. Table A323.4.2C gives the recom- in establishing temperature limitations. Table A323.4.3 mended temperature limits for reinforced thermosetting gives recommended temperature limits for thermoplas- resins. tic materials used as linings. (d) Borosilicate Glass and Porcelain (1) They shall be safeguarded when used in toxic A323.5 Deterioration of Materials in Service or flammable fluid services. Paragraph 323.5 applies in its entirety. (2) They shall be safeguarded against large,rapid temperature changes in fluid services. A325 MATERIALS — MISCELLANEOUS A323.4.3 Piping Lined With Nonmetals Paragraph 325 applies in its entirety. (a) Metallic Piping Lined With Nonmetals. Fluid service requirements for the base (outer)material in para.323.4 govern except as stated in (d) below. PART 8 (b) Nonmetallic Piping Lined With Nonmetals. Fluid ser- STANDARDS FOR PIPING COMPONENTS vice requirements for the base (outer) material in para. A323.4.2 govern, except as stated in (d) below. A326 DIMENSIONS AND RATINGS OF (c) Nonmetallic Lining Materials. The lining may be COMPONENTS any material that,in the judgment of the user,is suitable A326.1 Requirements for the intended service and for the method of manufac- ture and assembly of the piping. Fluid service require- Paragraph 326 applies in its entirety except that refer- ments in para. A323.4.2 do not apply to materials used ences to Table A326.1 and Appendix B replace references as linings. to Table 326.1 and Appendix A,respectively.