Measuring range: 0.010 - 0.700 mg/l NO2-N Sample volume: 5 ml Number of tests: 25 Cuvette: 16mm round Usable with PhotoLab® and pHotoFlex® Complies with: EN 26777 LD 10, US 4500-NO2-B Method: Griess reaction Combicheck: - Batch certificate: yes