DIN 54140-3:1989 Non-destructive testing; electromagnetic methods; representation and general characteristics of test coil assemblies
DIN 54150:1977 Non-destructive testing; impression methods for surface examination (Replica-technique)
DIN EN ISO 2178:1995 Non-magnetic coatings on magnetic substrates - Measurement of coating thickness - Magnetic method (ISO 2178:1982); German version EN ISO 2178:1995
DVS 2303-4-1999 history
2008DVS 2303-4-2008 Compilation of non-destructive testing methods for thermal spray coatings
1999DVS 2303-4-1999 Compilation of non-destructive testing methods for thermal spray coatings