1.1 本规范涵盖了用于制造由以下铜合金UNS编号之一生产的电连接器或弹簧触点的铜合金带的要求: 2. C14530、C15100、C15500、C17000、C17200、C17410、C17450、C17460、C17500、C17510、C19002、C19010、C19015、C19025、C19210、C19400、C19500、C19700、C23000、C26000、C40810、C40850、C40860、C42200、C42500、C42520、C42600、C50580、C50780、C51000、C51080、C51100、C51180、C51980、C52100、C52180、C52480、C63800、C64725、C65400、C68800，C70250、C70260、C70275、C70310、C70350、C75200和C76200。 1.2 其他铜合金的要求，如铜镍锡旋节合金、UNS C72650、C72700和C72900，应符合当前版本的规范的规定 B740 . 1.3 单位-- 以国际单位制或英寸表示的值- 磅单位应单独视为标准单位。每个系统中所述的值不一定是完全等效的；因此，每个系统都应独立使用。将两个系统的值结合起来可能会导致不符合标准。 1.4 以下安全危险警告仅适用于本规范中描述的测试方法。 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，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 covers the requirements for copper alloy strip for use in the manufacture of electrical connectors or spring contacts produced from one of the following Copper Alloy UNS Nos.: 2 C14530, C15100, C15500, C17000, C17200, C17410, C17450, C17460, C17500, C17510, C19002, C19010, C19015, C19025, C19210, C19400, C19500, C19700, C23000, C26000, C40810, C40850, C40860, C42200, C42500, C42520, C42600, C50580, C50780, C51000, C51080, C51100, C51180, C51980, C52100, C52180, C52480, C63800, C64725, C65400, C68800, C70250, C70260, C70265, C70310, C70350, C75200, and C76200. 1.2 The requirements for the other copper alloys such as copper-nickel-tin spinodal, UNS C72650, C72700, and C72900, shall be as prescribed in the current edition of Specification B740 . 1.3 Units— The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not necessarily be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.4 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. 1.5 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.