ASME B31.1-2026 《Power Piping》26版已出版

Key Changes

英文原版说明

New Mandatory Appendix Q - Quality Management Program Requirements for Metallic Nonboiler External Piping-Covered Piping Systems (NBEP-CPS)

New Mandatory Appendix R – Documentation, Records, and Report Requirements for Metallic Nonboiler External Piping-Covered Piping Systems

Adding reference to new Mandatory Appendix Q & R in the body of the Code

Deletion of Mandatory Appendix D, mandating the use of B31J as only option

Revised para. 137.2.1, Exposure of Joints, to require that joints be uncoated during a pressure test except when allowed by the owner

Dynamic Effects paras. 101.5.2 Wind and 101.5.3 Earthquake revised to not allow the Allowable Stress Design factors to be applied; Revised para. 120.2.4 Supplementary Structural Steel to permit the allowable stress increases in para. 121.2(J)

Addition of reference to API 579-1/ASME FFS-1 Fitness-For-Service in Mandatory Appendix F and Nonmandatory Appendix V with cautionary note for creep service, and metal loss in cycling service

Addition of definition of Designer to para. 100.2

Revised B31.1 for gender neutrality and removed gender bias terms

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