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ASTM B504-90(2023)
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Standard Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method
用库仑法测量金属镀层厚度的标准试验方法
1.1
该试验方法包括通过库仑法(也称为阳极溶液法或电化学剥离法)测定金属涂层的厚度。
1.2
本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的使用者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。
1.3
本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《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
涂层厚度的测量对于评估其效用和成本至关重要。
4.2
库仑法在很小的(约0.1厘米)范围内破坏涂层
2.
)测试区域。因此,它的使用仅限于测试区域的裸点可以接受或测试件可能被破坏的应用。
1.1
This test method covers the determination of the thickness of metallic coatings by the coulometric method, also known as the anodic solution or electrochemical stripping method.
1.2
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.
1.3
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
Measurement of the thickness of a coating is essential to assessing its utility and cost.
4.2
The coulometric method destroys the coating over a very small (about 0.1 cm
2
) test area. Therefore its use is limited to applications where a bare spot at the test area is acceptable or the test piece may be destroyed.