This International Standard specifies the method of using coating thickness instruments of the magnetic type for non-destructive measurements of the thickness of non-magnetic coatings (including vitreous and porcelain enamel coatings) on magnetic basis metals.
The method is applicable only for measurements on reasonably flat specimens. In the case of nickel coatings on non-magnetic substrates, the preferred method is that specified in ISO 2361.
SIS SS-ISO 2178:1983 history
1983SIS SS-ISO 2178:1983 Non-magnetic coatings on magnetic substrates - Measurement of coating thickness - Magnetic method