Abstract
This specification applies to seamless copper tube for linesets intended for use in air conditioning units. The pressure rating established is 700 psi at 250 °F and incorporates fully annealed and brazed copper tubing.
This specification establishes the requirements for materials and manufacturing process, chemical composition, temper, grain size, mechanical properties, performance (expansion test, cleanness of interior surface, microscopical examination for susceptibility to hydrogen embrittlement, pressure ratings), nondestructive testing requirements, workmanship, finish, and appearance. It also covers sampling, number of tests and retests, specimen preparation, test methods, inspection and certification, test report, product marking, and packaging and package marking.
Scope
1.1 This specification establishes the requirements for seamless copper tube for linesets intended for use in air conditioning units. The pressure rating established is 700 psi at 250 °F and incorporates fully annealed and brazed copper tubing.
1.2 The tube shall be produced from the following copper alloy:
Copper UNS No.
Previously Used
Designation
Description
C12200
DHP
Phosphorus deoxidized,
high residual phosphorus
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 information only and are not considered standard.
1.4 The following safety hazard caveat pertains only to the test methods described in this specification:
1.4.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.