GB/T 16921-2005 (English Version) PDF

Standard No.: GB/T 16921-2005
Language: Chinese, Available in English version
Release Date: 2005
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 16921-2005
Replace: GB/T 16921-1997

Scope: This standard specifies the method for measuring the thickness of metal coatings by X-ray spectroscopy. The measurement method used in this standard is basically a method for determining the mass per unit area. If the density of the covering material is known, the measurement can also be expressed in terms of the linear thickness of the covering. This measurement method can simultaneously measure the three-layer covering layer system, or simultaneously measure the thickness and composition of the three-layer components. The actual measurement range for a given overlay material depends primarily on the energy of the characteristic X-ray fluorescence being analyzed and the allowable measurement uncertainty, and varies with the instrumentation and operating procedures used.

GB/T 16921-2005 history

2005 GB/T 16921-2005 Metallic coatings.Measurement of coating thickness.X-ray spectrometric methods
1997 GB/T 16921-1997 Measurement of metallic coating thickness X-ray spectrometric methods