This standard specifies the manufacturing, inspection and acceptance requirements for pressure vessel heads made of steel, aluminum, iron, copper, nickel and nickel alloys, as well as commonly used head types and basic parameters. This standard is applicable to hemispherical, elliptical, dish-shaped, spherical crown, flat-bottomed and conical heads for pressure vessels formed by stamping, spinning, rolling and split forming of the whole plate or joint plate. The requirements for manufacturing, inspection and acceptance of heads used for atmospheric pressure vessels and other pressure-bearing equipment can also be implemented with reference to this standard.