BS 5411-12(1981) : 1981 AMD 8490被替代
METHODS OF TEST FOR METALLIC AND RELATED COATINGS - BETA BACKSCATTER METHOD FOR MEASUREMENT OF THICKNESS
出版：British Standards Institution
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Defines a procedure for the non-destructive measurement of coating thicknesses using beta backscatter gauges. Relates to both metallic and non-metallic coatings on both metallic and non-metallic substrates. To use this method, the atomic numbers or equivalent atomic numbers of the coating and the substrate must differ by an appropriate amount. Includes references to definitions, principle, instrumentation, factors relating to accuracy, calibration of instruments, measuring procedure, measuring accuracy and precision, test report, isotopes used with beta backscatter gauges, atomic numbers of some commonly used coatings and substrates and saturation thickness. BS AMD 8490 RENUMBERS THIS STANDARD TO BS EN ISO 3543
ISO 3543 : 2000(R2016) - Identical
