GB/T 20255.5-2006
Mehods for chemical analysis of hardmetals. Determination of chromium content. Flame atomic absorption spectrometric method (English Version)

Standard No.: GB/T 20255.5-2006
Language: Chinese, Available in English version
Release Date: 2006
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20255.5-2006

Scope: This part specifies the determination by flame atomic absorption spectrometry of carbides of niobium, tantalum, titanium, tungsten, vanadium, mixtures of the above carbides and binder metals, and chromium in cemented carbides (including coated cemented carbides without coatings). Quantitative method. This part is applicable to the determination of carbides of niobium, tantalum, titanium, tungsten and vanadium, mixtures of the above carbides and binder metals, and chromium in hard alloys. Measuring range: 0.01% to 2%.

GB/T 20255.5-2006 history

2006 GB/T 20255.5-2006 Mehods for chemical analysis of hardmetals. Determination of chromium content. Flame atomic absorption spectrometric method