1 نظرة عامة على الطريقة

The wheel hub is thoroughly cleaned with ultrapure water and air-dried. A scraper is used to remove the topcoat, intermediate coating and primer on the surface. After microwave digestion, the concentration of chromium is determined by flame atomic absorption spectrometry at a wavelength of 357.9 nm.

2 نطاق التطبيق

Determination of chromium in surface coatings of wheel hubs

3. المعيار المرجعي

IEC 62312

4 Instruments and Reagents

4.1 الأدوات والمعدات

4.1.1 Analytical Instruments

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