For hexavalent chromium determination by the Diphenylcarbohydrazide Method. USEPA accepted for reporting for wastewater analyses using (Hach Method 8023). Range: up to 0.70 mg/L Cr Sample Size: 25 mL Method Name: 1,5-Diphenylcarbohydrazide Platform : Powder Pillows Hach…

For determination of ferrous iron by the 1,10-phenanthroline method (Hach method 8146). Method: 1, 10 Phenanthroline Range: 0.02 to 3.00 mg/L Fe 2+ Sample: 25 mL Parameter: Iron, Ferrous Pack of 100 Powder Pillows Hach products are intended for…

Citric Acid Powder Pillows For Silica Analysis Reagent for use in the silicomolybdate method (Hach method 8185) for the determination of high range silica (0-100.0 mg/L SiO2) Included in the High Range Silica Reagent Set for 25-mL Samples (2244300) pk/100 Powder…