ASTM B280-20 pdf free.Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service.
1.1 This specification establishes the requirements for seaniless copper tube intended for usc in (he connection. repairs. or alternations of air conditioning or refrigeration units in the field.
Nore 1—Fittings used br soldered or brazed connections in air conditioning and refrigeration systems are described in ASMF Standard B 16.22.
Nore 2—The assembly of copper tubular systems by soldering is described in Practice B828.
Nore 3—Solden for joining copper tubular systems are described in Specification B32. The requirements for acceptable Iluxes for these systems are described in Specitication B8I3.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for infomiation only and are not considered standard.
1.4 The following haiard statement pertains only to the test method described in 18.2.4 of this speciticaüon: This standard does no! purport to address till of the safer’ concerns. if ani; associated with its use. Ii is the responsibility of the user of this standard to establish appropriate  safers. health, and en iron— menial practices and determine the applicability of regulatory limitations prior to use.ASTM B280 free download.