1.1 本规程涵盖了从金相处理表面获得的醋酸纤维素或塑料薄膜复制品的制备和评估的公认方法。它用于评估复制品，以确保金相处理表面的所有重要特征已复制并保存在复制品上，具有足够的细节，以允许以最佳分辨率和灵敏度进行光学显微镜和扫描电镜检查。 1.2 本惯例可作为商业情况下的控制文件。 1.3 以国际单位制表示的数值应视为标准。括号中的英寸-磅单位仅供参考。 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）。 本标准的用户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（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。 ====意义和用途====== 4.1 复制是一种无损取样程序，记录并保存金相处理表面的形貌，作为塑料膜（副本）上的负浮雕。复制品允许在LM或SEM上检查和分析经金相处理的表面。 4.2 使用增强程序来提高显微镜检查的副本对比度，有时是必要的（参见 8.1 ). 注1: 建议现场复制服务的购买者指定每个复制器通过提供现场制备的复制金相学和直接LM和SEM来证明其熟练程度，并通过等级和服务暴露与实验室制备的相同材料样品进行比较。

1.1 This practice covers recognized methods for the preparation and evaluation of cellulose acetate or plastic film replicas which have been obtained from metallographically prepared surfaces. It is designed for the evaluation of replicas to ensure that all significant features of a metallographically prepared surface have been duplicated and preserved on the replica with sufficient detail to permit both LM and SEM examination with optimum resolution and sensitivity. 1.2 This practice may be used as a controlling document in commercial situations. 1.3 The values stated in SI units are to be regarded as the standard. Inch-pound units given in parentheses are for information only. 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. ====== Significance And Use ====== 4.1 Replication is a nondestructive sampling procedure that records and preserves the topography of a metallographically prepared surface as a negative relief on a plastic film (replica). The replica permits the examination and analysis of the metallographically prepared surface on the LM or SEM. 4.2 Enhancement procedures for improving replica contrast for microscopic examination are utilized and sometimes necessary (see 8.1 ). Note 1: It is recommended that the purchaser of a field replication service specify that each replicator demonstrate proficiency by providing field prepared replica metallography and direct LM and SEM comparison to laboratory prepared samples of an identical material by grade and service exposure.