DS DS/EN ISO 3868
DS DSEN SO 3868 1994-DEC-20 Metallc and other non-organc coatngs - Measurement of coatng thcknesses - Fzeau multple-beam nterferometry method
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This standard specifies a method for the measurement of the thickness of thin, highly reflective coatings (up to 2 µm) by the use of Fizeau multiple-beam interferometry.