1.1 该测试方法包括测量卷材涂覆的有机涂层的膜厚度。操作员可以在涂层应用过程中或在实验室环境中使用这种方法。 1.2 该测试方法没有规定涂层的预期膜厚/测试结果，也没有规定测量涂层所需的特定“配方”文件。 1.3 以SI单位或英寸-磅单位表示的值应单独视为标准值。每个系统中陈述的值不一定完全等同；因此，为确保符合标准，每个系统应独立使用，两个系统的数值不得合并使用。 1.4 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。1.5 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》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 4.1 涂膜厚度对最终产品的性能起着关键作用。这包括物理性质（耐磨性/耐刮擦性、颜色、光泽度）、化学性质（耐溶剂性）、耐腐蚀性和长期耐久性（变色、白垩、褪色）。 4.2 基于加固型光学干涉的无损测量系统使用可从一种仪器复制到另一种仪器的数字公式（或“配方”）来转换涂膜厚度的信号输出。4.3 ROI测量单元进行大量的测量，这些测量可以在确定的时间段内读取，并且这些数据点中的每一个都被记录和报告。 4.4 由于在施加过程中可能影响膜厚度的变量的数量以及在确定配方时必须在测量单元中设置的变量的数量，生产商和用户根据涂层系统就配方设置达成一致是重要的。

1.1 This test method encompasses measuring the film thickness of a coil coated organic coating layer. Operators can use this method in process during the coating application or in a laboratory setting. 1.2 This test method does not specify the expected film thickness/test results for a coating, nor the specific “recipe” file needed to measure a coating. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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 Coating film thickness plays a critical role in the performance of the final product. This includes physical properties (abrasion/scratch resistance, color, gloss), chemical properties (solvent resistance), corrosion resistance, and long-term durability (color change, chalk, fade). 4.2 The non-destructive measurement system based on ruggedized optical interference transforms signal outputs in coating film thickness using digital formulas (or “recipes”) which are reproducible from one instrument to another. 4.3 The ROI measurement unit takes a significant number of measurements which can be read in a determined period of time and each of these data points is recorded and reportable. 4.4 Due to the number of variables that can affect film thickness during application and the number of variables that must be set in the measurement unit while determining a recipe, it is important for the producer and the user to agree upon recipe settings depending on the coating system.