This standard specifies a method for the non-destructive measurement of coating thicknesses using beta backscatter gauges. It applies to both metallic and non-metallic coatings on both metallic and non-metallic substrates.
DS/EN ISO 3543:2001 history
2001DS/EN ISO 3543:2001 Metallic and non-metallic coatings - Measurement of thickness - Beta backscatter method