NFPA 54 国家燃气规范
日期:2012-02-08 15:32
LP-Gas piping systems are limited to 20 psi (140 kPa), except as provided in 5.5.2. (C) Requirements for piping systems shall include design, materials, components, fabrication, assembly, installation, testing, inspection, operation, and maintenance. (D) Requirements for appliances, equipment, and related accessories shall include installation, combustion, and ventilation air and venting.
1.1.1.2 This code shall not apply to the following items (reference standards for some of which appear in An
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