1.1 This specification establishes the requirements for naval brass rod, bar, and shapes produced from Copper Alloys UNS Nos. C46200, C46400, C47940, C48200, or C48500.

1.1.1 For piston-finish rod or shafting, refer to Section 9.

1.2 This specification is the companion to inch-pound Specification B21.

1.3 Warning-Mercury is a definite health hazard in use and disposal (see 8.1).