به منظور اندازه گیری کروم با روش دی فنیل کربوهیدرازید ChromaVer® 3 Chromium Reagent Powder Pillows, 5 or 10 mL, pk/100 For determination of hexavalent chromium by the Diphenylcarbohydrazide method. USEPA accepted for reporting for wastewater analyses using Hach Method 8023, Diphenylcarbohydrazide Method. Photometric Sample Size: 10 mL. Photometric Range: up to 0.70 mg/L. Kit Sample Size: 5 mL. Kit Range: Up to 1.50 Pack of 100 powder pillows.