1.1 本规范涵盖了用于工程应用的金属产品的电镀镍涂层的要求，例如，用作机械加工不良或磨损零件的堆焊层，用于电子应用，包括用作触点或互连中的底板，以及某些连接应用。 1.2 工程用镍电镀( 注1 )需要与装饰应用显著不同的技术考虑，因为以下功能特性很重要: 1.2.1、 硬度、强度和延展性， 1.2.2 耐磨性， 1.2.3 承载特性， 1.2.4 耐腐蚀性， 1.2.5 耐热结垢性， 1.2.6 耐微动性，以及 1.2.7 抗疲劳性。 注1: 功能性电镀镍层通常含有约99 % 并且最常见的是从Watts镍浴或氨基磺酸镍浴中电沉积。指南中给出了这些镀液电镀镍的典型机械性能，以及镀液操作和溶液成分变量对电镀层机械性能的综合影响 B832 当要求电镀镍具有更高的硬度、更大的耐磨性、一定的残余应力值和一定的整平特性时，通过在电镀溶液中使用某些添加剂，硫和其他物质被掺入镍沉积物中。有关此类添加剂的作用，请参见第节 4. 和 附件A3 钴盐有时被添加到电镀溶液中以产生更硬的镍合金沉积物。 1.3 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。 1.4 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 electroplated nickel coatings applied to metal products for engineering applications, for example, for use as a buildup for mismachined or worn parts, for electronic applications, including as underplates in contacts or interconnections, and in certain joining applications. 1.2 Electroplating of nickel for engineering applications ( Note 1 ) requires technical considerations significantly different from decorative applications because the following functional properties are important: 1.2.1 Hardness, strength, and ductility, 1.2.2 Wear resistance, 1.2.3 Load bearing characteristics, 1.2.4 Corrosion resistance, 1.2.5 Heat scaling resistance, 1.2.6 Fretting resistance, and 1.2.7 Fatigue resistance. Note 1: Functional electroplated nickel coatings usually contain about 99 % nickel, and are most frequently electrodeposited from a Watts nickel bath or a nickel sulfamate bath. Typical mechanical properties of nickel electroplated from these baths, and the combined effect of bath operation and solution composition variables on the mechanical properties of the electrodeposit are given in Guide B832 . When electroplated nickel is required to have higher hardnesses, greater wear resistance, certain residual stress values and certain leveling characteristics, sulfur and other substances are incorporated in the nickel deposit through the use of certain addition agents in the electroplating solution. For the effect of such additives, see Section 4 and Annex A3 . Cobalt salts are sometimes added to the plating solution to produce harder nickel alloy deposits. 1.3 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.