2015GOST R 56542-2015 Non-destructive testing. Classification of types and methods
1979GOST 18353-1979 Nondestructive check. Classification of types and methods
0000 GOST 18353-1973
GOST 18353-1979 Nondestructive check. Classification of types and methods was changed to GOST R 56542-2015 Non-destructive testing. Classification of types and methods.