ASME B31.12-2014
- Hydrogen Piping and Pipelines
- standard by ASME International, 02/20/2015
- Publisher: ASME
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This Code is applicable to piping in gaseous and liquid hydrogen service and to pipelines in gaseous hydrogen service. This Code is applicable up to and including the joint connecting the piping to associated pressure vessels and equipment but not to the vessels and equipment themselves. It is applicable to the location and type of support elements but not to the structure to which the support elements are attached. This Code is presented in the following parts:
(a) Part GR - General Requirements. This part contains definitions and requirements for materials, welding, brazing, heat treating, forming, testing, inspection, examination, operation, and maintenance.
(b) Part IP - Industrial Piping. This part includes requirements for components, design, fabrication, assembly, erection, inspection, examination, and testing of piping.
(c) Part PL - Pipelines. This part sets forth requirements for components, design, installation, and testing of hydrogen pipelines.
(d) Mandatory Appendices I through IX
(e) Nonmandatory Appendices A through F
Each part defines requirements for piping or pipelines,as applicable, within its scope. The requirements aredifferent for different aspects of components, design,fabrication, installation, assembly, erection, inspection,examination, and testing. It is required that each partbe used in conjunction with the General Requirementssection but independent of the other parts. The jointconnecting piping governed by two different parts shall be subject exclusively to the requirements of one of thetwo parts. It is not intended that this edition of this Codebe applied retroactively to existing hydrogen systems.
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