LPG storage tank test requirements and product performance requirements

Improve the technical requirements for ultra-high pressure vessels, improve the basic safety requirements for non-metallic pressure vessels, such as graphite and fiberglass, and simplify the supervision methods of plastic pressure vessels; improve the basic requirements for safety accessories, including the types, scope definition, type test requirements and products of safety accessories Performance requirements; promotion of pressure vessel design risk assessment reports; unified approach to classification of fixed pressure vessels;