1.1 本规范涵盖海绵、铸棒和锻造形式的精制钯( 注1 )一个等级如下: 1.1.1 99.95级（UNS PO3995）- 纯度为99.95的钯 %. 注1: 本规范不排除其他形式的未经加工的商用钯。 注2: 为了确定与本规范的一致性，应根据惯例的舍入方法，将从分析中获得的观察值舍入到用于表示极限值的数字右最后一位的最近单位 E29年 . 1.2 以英寸-磅为单位的数值应视为标准值。 括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 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）。本标准的用户有责任熟悉所有危险，包括制造商提供的本产品/材料的适当安全数据表（SDS）中确定的危险，建立适当的安全、健康和环境实践，并在使用前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（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》中确立的国际公认标准化原则制定的。

1.1 This specification covers refined palladium as sponge, cast bar, and wrought forms ( Note 1 ) in one grade as follows: 1.1.1 Grade 99.95 (UNS PO3995)— Palladium having a purity of 99.95 %. Note 1: Other forms of unfabricated palladium of commerce are not to be excluded under this specification. Note 2: For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded to the nearest unit in the last right hand place of figures used in expressing the limiting value, in accordance with the rounding method of Practice E29 . 1.2 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. 1.3 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, 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.