scope:

This Standard applies to manual lever operated, pressure lubricated, straight way gas shut-off valves of metallic construction with weld and flanged and threaded ends.

This Standard applies to valves used in:

a. appliances and equipment where gas is to be used for fuel purposes and,

b. piping and tubing systems falling within the pressure limitations covered in this Standard.

This Standard sets forth the minimum capabilities which o valve must possess in order to be considered suitable for use with natural gas, manufactured gas and liquefied petroleum gases (distributed as vopour with or without the admixture of air), or mixtures thereof.

Note: Valves covered by this Standard may be used on "digester gas" (methane produced during sewage treatment) but because of entrained contaminants their use shall be subject to agreement between the manufacture and the purchaser.