1.1 本规范涵盖预应力混凝土中使用的锯齿状低松弛钢丝。 1.2 本规范的文本包含注释或脚注，或两者兼有，以提供解释性材料。此类注释和脚注不包含任何强制性信息。 1.3 本规范适用于英制单位（如规范A881）或国际单位制单位（如规格A881M）的订单。 1.4 以英寸磅单位或国际单位制表示的数值应单独视为标准。在正文中，国际单位制显示在括号中。每个系统中规定的值可能不是完全相等的；因此，每个系统应独立使用。组合两个系统的值可能导致- 符合规范。 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 indented, low-relaxation steel wire for use in prestressed concrete. 1.2 The text of this specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes do not contain any mandatory information. 1.3 This specification is applicable for orders in either inch-pound units (as Specification A881) or in SI units (as Specification A881M). 1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not 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 specification. 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.