1.1 This Part specifies the requirements for the fabrication, inspection and testing, and acceptance of steel pressure vessels within the applicable scope of GB 150. The requirements for the fabrication, inspection and testing, and acceptance of pressure vessels made of other materials shall be in accordance with the relative standards.
1.2 This Part is applicable to the structures of pressure vessels as follows: single-layer welded pressure vessels, forged-welded pressure vessels, and layered pressure vessels (including concentric wrapped, integrated wrapped, flat steel ribbon wound, and shrink fit pressure vessels).
1.3 For low temperature pressure vessels made of austenitic steels (at design temperature lower than -196℃), the requirements for the fabrication, inspection and testing, and acceptance specified according to the negotiation of the parties participating in the fabrication shall be specified in design documents by the design organization.
