1.1 本规范规定了空调机组用线路用无缝铜管的要求。确定的压力额定值为700 psi，温度为250°F，包括完全退火和钎焊的铜管。 1.2 管子应由以下铜合金制成: 铜UNS编号。 以前使用过 任命 描述 C12200 DHP 磷脱氧， 高残留磷 1.3 以英寸-磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.4 以下安全隐患警告仅适用于本规范中描述的测试方法: 1.4.1 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的使用者有责任在使用前制定适当的安全和健康措施，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

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. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.