1.1 本规范涵盖具有财产和质量的圆形冷拉钢弹簧丝，用于制造以下类型的室内弹簧: 1.1.1 A类- 卷绕（马歇尔包装）， 1.1.2 B类- 盘绕和打结， 1.1.3 C类- 盘绕和打结（偏移式）， 1.1.4 D型- 盘绕和钩状（单螺旋和交叉螺旋）， 1.1.5 E型- 卷曲和钩状（短张力规则抗拉强度）， 1.1.6 F型- 卷曲和钩状（短张力高抗拉强度）， 1.1.7 G型- 常规系带， 1.1.8 H型- 自动系带， 1.1.9 类型I- 锯齿形（U形）， 1.1.10 J型- 形成正方形，以及 1.1.11 K型- 家具弹簧单元有缺陷。 1.2 这些类型的内饰弹簧用于制造汽车座椅弹簧、家具弹簧、床弹簧单元、床垫、家具坐垫和汽车座椅。此电线不用于制造机械弹簧。 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 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、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 round, cold-drawn, steel spring wire having properties and quality intended for the manufacture of the following types of upholstery springs: 1.1.1 Type A— Coiled (Marshall pack), 1.1.2 Type B— Coiled and knotted, 1.1.3 Type C— Coiled and knotted (offset style), 1.1.4 Type D— Coiled and hooked (single and cross helicals), 1.1.5 Type E— Coiled and hooked (short tension—regular tensile strength), 1.1.6 Type F— Coiled and hooked (short tension—high tensile strength), 1.1.7 Type G— Regular lacing, 1.1.8 Type H— Automatic lacing, 1.1.9 Type I— Zig-zag (U-formed), 1.1.10 Type J— Square-formed, and 1.1.11 Type K— Sinuous for furniture spring units. 1.2 These types of upholstery springs are used in the manufacture of automotive seat springs, furniture springs, bed spring units, mattresses, furniture cushions, and automobile seats. This wire is not intended for the manufacture of mechanical springs. 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 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.