The ASTM B555 Standard Guide for Measuring the Thickness of Electrodeposited Metal Coatings by Drop tests covers the use of drop tests to measure the thickness of electrodeposited zinc, 镉, 铜, and tin coatings.
ASTM B555-86-2018 通过跌落试验测量电镀金属涂层厚度的标准指南

意义及用途

4.1 The thickness of the metal coating is usually important to its performance.

4.2 This procedure can be used for approximate determination when good accuracy is not required. For more reliable determination, the following methods can be used: Test methods B487, B499, B504 and B568.

4.3 This test assumes that the dissolution rate of the coating is always the same under specified conditions.

ASTM B555-86-2018 通过跌落试验测量电镀金属涂层厚度的标准指南

步 1: 范围

1.1 This guide covers the use of drop testing to measure the thickness of electrodeposited zinc, 镉, copper and tin coatings.

笔记 1: 在多数情况下, this method of measuring coating thickness is not as reliable or convenient as using a suitable coating thickness meter (see test methods B499, B504 and B568).

1.2 本标准并非旨在解决所有安全问题, 如果有的话, 与其使用相关. 本标准的使用者有责任建立适当的安全机制, 健康和环境实践，并在使用前确定监管限制的适用性.

1.3 该国际标准基于国际公认的标准化原则 “关于国际标准制定原则的决定, 指南和建议” 世界贸易组织技术性贸易壁垒委员会发布 (技术性贸易壁垒) 委员会.