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Homepage>BS Standards>17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA>17.040 Linear and angular measurements>17.040.20 Properties of surfaces>BS EN ISO 4518:2021 Metallic coatings. Measurement of coating thickness. Profilometric method
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immediate downloadReleased: 2021-05-07
BS EN ISO 4518:2021 Metallic coatings. Measurement of coating thickness. Profilometric method

BS EN ISO 4518:2021

Metallic coatings. Measurement of coating thickness. Profilometric method

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Standard number:BS EN ISO 4518:2021
Pages:16
Released:2021-05-07
ISBN:978 0 539 04808 7
Status:Standard
DESCRIPTION

BS EN ISO 4518:2021


This standard BS EN ISO 4518:2021 Metallic coatings. Measurement of coating thickness. Profilometric method is classified in these ICS categories:
  • 25.220.40 Metallic coatings
  • 17.040.20 Properties of surfaces

This document specifies a method for the measurement of metal coating thickness by first forming a step between the surface of the coating and the surface of its substrate and then measuring the step height using a profile recording instrument. It covers the instrumentation characteristics and the procedure appropriate to this specific application of profilometric methods.

The method is applicable to the measurement of thicknesses of metal coatings from 0,01 µm to 1 000 µm on flat surfaces and, if appropriate precautions are taken, on cylindrical surfaces. It is highly suitable for the measurement of minute thicknesses but, for thicknesses of less than 0,01 µm, surface flatness and surface smoothness are very critical and, accordingly, the method is not suitable for use down to the lowest level of measurement usual for electronic stylus instruments. The method is suitable for measuring coating thicknesses when preparing coating thickness reference standards.