Short description
This Standard Practice covers copper and copper alloy unions with metal-to-metal seating, in nominal sizes 1/4 through 4, with solder-joint or threaded end connections, and for use with copper water tube that is compliant with ASTM B88. Included in this Standard Practice are: a. Pressure-temperature ratings; b. Abbreviations for end connections; c. Description and terminology of parts; d. Materials; e. Size and method of designating openings of fittings; f. Design elements; g. Dimensions and tolerances; h. Testing; i. Marking.