BS EN 1233:1997

This standard BS EN 1233:1997 Water quality. Determination of chromium. Atomic absorption spectrometric methods is classified in these ICS categories:

• 13.060.50 Examination of water for chemical substances

Two methods, a high range for concentrations of 0.5 to 20 mg/l and a low range for concentrations of 5 to 100 μg/l.