ISO 3882:2024 pdf download - Metallic and other inorganic coatings - Review of methods of measurement of thickness 金属和其他无机涂层 - 厚度测量方法综述

ISO 3882:2024 pdf download - Metallic and other inorganic coatings - Review of methods of measurement of thickness.
金属和其他无机涂层 - 厚度测量方法综述
This document ISO 3882:2024 reviews methods for measuring the thickness of metallic and other inorganic coatings on both metallic and non-metallic substrates (see Tables 1, A.1 and A.2). It is limited to tests already specified, or to be specified, in International Standards and excludes certain tests that are used for special applications.
本文件回顾了测量金属和非金属基材上金属和其他无机涂层厚度的方法(见表1、A.1和A.2)。它仅限于国际标准中已经规定或将要规定的试验，不包括用于特殊应用的某些试验。
This document summarizes the various methods used for the measurement of coating thickness and describes their working principles.Methods of measuring coating thickness are either destructive or non-destructive (see Table 1)。The information given in Annex A,Table A.1 will assist in the choice of typical instrumental methods suitable for thickness measurements.For all instrumental methods,manufacturers instructions contain useful information on the correct handling of the instruments.
The thickness ranges covered by the different methods depend on the coating materials,thickness of thecoating,substrates and instruments used (see Annex A,Table A.2)；for example,although X-ray spectrometry can be used to measure the thickness of a chromium coating,thicknesses of 20 um or more cannot be measured with sufficient precision.Similarly,while magnetic methods can be used to measure the thickness of a gold coating over a magnetic steel substrate,many magnetic instruments do not have the sensitivity tomeasure accurately thicknesses of gold coatings less than 2 um.
Where a referee method is required,the appropriate coating specification can contain useful information onthe preferred method.