Water and Wastewater Testing Supplies
Hach Company Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20 - 2 mL PourRite« Ampules (NIST)
For accuracy checks in chlorine determinations. Pack of 20 2-mL ampules. Lot-specific concentration displayed on label.
Hach Company Sodium Thiosulfate Standard Solution, 1.0 N, 50 mL SCDB
For sample dechlorination prior to analysis
Hach Company NitriVer 2 Nitrite Reagent Powder Pillows, pk/100
For determination of high range nitrite by the ferrous sulfate method. Sample Size: 5 mL. pk/100 Powder Pillows.
Hach Company Silica Reagent Set, HR, 5mL Samples, 100 Tests
For high range silica determination by the Silicomolybdate method. For visual test kits that require a 5 mL sample. 100 tests
Hach Company Hardness 1 Buffer Solution, 100 mL MDB
Buffer for hardness and chelant determination by titration, pH 10.1 ± 0.1 at 20°C. Hach methods 8213 and 8226. Also used in Hach Phenols method 8047. 100 mL Marked Dropping Bottle
Hach Company Fluoride Standard Solution, 0.2 mg/L as F (NIST), 500 mL
For accuracy checks in fluoride determinations
Hach Company Sulfite 3 Reagent, 1 L
For sulfite determination by drop-count iodometric titration. 1 liter bottle.
Sigma Aldrich Fine Chemicals Biosciences Phenol solution, 108-95-2, MFCD00002143, 100mL
Empirical Formula (Hill Notation) C6H6O, Molecular Weight 94.11, Equilibrated with 10 mM Tris HCl, pH 8.0, 1 mM EDTA, BioReagent, for molecular biology.
