• Analytical method: DPC colorimetry after oxidizing CESO4
• Range: 0 – 1 mg / L Cr6 +, higher range with internal dilution
• Lower detection limit: ≤ 1 µg / L (for 0-1 mg / L Cr6 +)

• Analysis method

- Conform with ASTM 3500-Cr B

- Chromium(VI): colorimetric measurement using diphenylcarbazide (DPC) color solution

- Total chromium: colorimetric measurement using DPC color solution after digestion with oxidation solution

• Standard measuring ranges

- One single range, factory set:

0 – 50 µg/L Cr(VI) or

0 – 500 µg/L Cr(VI)

- Note: higher ranges available by sample dilution