1.1 本规范 2. 确定了适用于一般工程应用的无缝圆形、矩形和方形铜管的要求。 1.1.1 除非合同或采购订单中另有规定，否则应提供由以下UNS编号的铜管: 铜UNS编号。 铜的类型 C10100 无氧电子 C10200 无氧，无残留脱氧剂 C10300 无氧、超低磷 C10800 无氧、低磷 C12000 磷还原，低残留磷 C12200 磷还原，高残留磷 1.2 单位- 以英寸-磅单位或国际单位表示的数值应单独视为标准值。在本文中，国际单位制显示在括号中。 每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。 1.3 以下安全危险警告仅适用于本规范中所述的试验方法: 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。

1.1 This specification 2 establishes the requirements for seamless round, rectangular, and square copper tube suitable for general engineering applications. 1.1.1 Tubes made from any of the following Copper UNS No. designations shall be supplied unless otherwise specified in the contract or purchase order: Copper UNS No. Type of Copper C10100 Oxygen-free electronic C10200 Oxygen-free without residual deoxidants C10300 Oxygen-free, extra low phosphorus C10800 Oxygen-free, low phosphorus C12000 Phosphorus deoxidized, low residual phosphorus C12200 Phosphorus deoxidized, high residual phosphorus 1.2 Units— The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.3 The following safety hazard caveat pertains only to the test methods described in this specification: 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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.