GB/T 31926-2015 (English Version) PDF

Standard No.: GB/T 31926-2015
Language: Chinese, Available in English version
Release Date: 2015
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 31926-2015

Scope: This standard specifies the determination of lead, cadmium and chromium by glow discharge atomic emission spectrometry. This standard applies to the determination of the content of lead, cadmium and chromium elements in the pure zinc, zinc-iron, zinc-aluminum, and aluminum-zinc coatings on the surface of steel sheets and strips with a coating thickness of 1 μm to 50 μm. Measuring range (mass fraction): lead: 0.003 5% to 0.2%; cadmium: 0.003% to 0.2%; chromium: 0.002% to 0.02%.

GB/T 31926-2015 Referenced Document

GB/T 19502 Surface chemical analysis—General rules for glow discharge optical emission spectrometry (GD-OES)*， 2023-12-28 Update
GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
GB/T 6379.2 Accuracy(trueness and precision)of measurement methods and results-Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method

2015 GB/T 31926-2015 Zinc and aluminum based coatings on steel sheets and strips.Determination of lead,cadmium and chromium contens.Glow discharge atomic emission spectrometry method