1.1 本规范涵盖了通过热扩散涂层（TDC）方法应用于由碳钢制成的各种产品的保护性锌涂层（以下称为涂层）的一般要求，包括低和高拉伸零件以及熟铁、铁和钢铸件、烧结铁钢粉末以及各种钢和不锈钢合金。TDC是一种干涂工艺，通过将零件在高温下浸入锌或锌合金粉末中一段时间，引起锌和铁的冶金扩散过程来进行。可以添加进一步的处理，例如钝化、面漆应用、油漆应用等。 1.2 本规范适用于以英寸-磅为单位的订单（如 A1059 ）或SI单位（如 A1059M ).英寸-英镑单位和国际单位制单位不一定完全等同。在本说明书的正文中，在适当的情况下，SI单位在括号中示出。每个系统应独立使用，不得以任何方式组合值。如果订单以国际单位制为单位，则所有测试和检查应酌情使用测试或检查方法的公制等效物进行。如果订单以英寸-磅为单位，则应在下订单时向申请方说明。 1.3 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。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法规限制的适用性。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》中确立的国际公认的标准化原则制定的。

1.1 This specification covers the general requirements for protective zinc coatings (hereinafter referred to as the coatings) to be applied by the thermo-diffusion coating (TDC) method, to various products made of carbon steel, including low and high tensile parts as well as of wrought iron, iron and steel castings, sintered iron steel-powder, and various steel and stainless alloys. TDC is a dry coating process carried out by immersing the parts in a zinc or zinc alloy powder at elevated temperature for a period of time, causing a metallurgical diffusion process of zinc and iron. Further processing may be added, such as passivation, topcoat application, paint application, etc. 1.2 This specification is applicable to orders in either inch-pound units (as A1059 ) or in SI units (as A1059M ). Inch-pound units and SI units are not necessarily exact equivalents. Within the text of this specification and where appropriate, SI units are shown in brackets. Each system shall be used independently of the other without combining values in any way. In the case of orders in SI units, all testing and inspection shall be done using the metric equivalent of the test or inspection method as appropriate. In the case of orders in inch-pound units, such shall be stated to the applicator when the order is placed. 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.