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Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound…

Conversion coatings on metallic materials. Determination of coating mass per unit area. Gravimetric methods.

Acoustics — Reference zero for the calibration of audiometric equipment — Part 2: Reference equivalent thresh…

Overview ISO 389-2:1994 defines the reference equivalent threshold sound pressure levels (RETSPL) for pure-tone audiometry when using insert earphones. It supplements the RETSPLs in ISO 389:1991 (to…

Conversion coatings on metallic materials — Determination of coating mass per unit area — Gravimetric methods

Overview ISO 3892:2000 specifies gravimetric methods to determine the coating mass per unit area of conversion coatings on metallic materials. It covers phosphate and chromate conversion coatings on…

Conversion coatings on metallic materials — Determination of coating mass per unit area — Gravimetric methods

Conversion coatings on metallic materials. Determination of coating mass per unit area. Gravimetric methods