1.1 This specification covers welded tube of copper and various copper alloys up to 80 mm, inclusive, in diameter, for use in surface condensers, evaporators, heat exchangers, and general engineering applications. Tubes for this application are normally made of the following coppers or copper alloys:
NOTE 1--This specification is the metric companion of Specification B 543.
1.2 Warning--Mercury is a definite health hazard in use and disposal. (See 14.1.)