For determination of Anionic Surfactants (Detergents) by the Crystal Violet method (Hach method 8028) and Selenium by the Diaminobenzidine method (Hach method 8194). 500 mL bottle

Reagent for determination of Detergents (Surfactants) in test kits. 100 mL Marked Dropping Bottle. For use with the Storm Water Test Kit, Model SW-1 (item #2481300).

For determination of Reactive (ortho) and Total Phosphorus (phosphate) by the Ascorbic Acid method, using TNTplus vials. Hach Methods 10209 (reactive) and 10210 (total). UHR Range: 2-20 mg/L PO4-P (6-

For determination of Reactive (ortho) and Total Phosphorus (phosphate) by the Ascorbic Acid method, using TNTplus vials. Hach Methods 10209 (reactive) and 10210 (total). High Range: 0.5-5.0 mg/L PO₄-P

For determination of Reactive (ortho) and Total Phosphorus (phosphate) by the Ascorbic Acid method, using TNTplus vials. Hach Methods 10209 (reactive) and 10210 (total). Low Range: 0.05-1.50 mg/L PO4-