HACH - Formula for water analysis.
Chlorine ( Free & Total) , Pocket Colorimeter II Test Kit cat. 58700-00
- Pocket Colorimeter II Analysis System for Free Chlorine and Total Chlorine
- Two Ranges: LR - 0.02 to 2.00 mg/ L and HR - 0.1 to 8.0 mg/ L as Cl2
- Reagents included: ( 100 tests each, low range, or 50 tests each, high range)
- Complete with manual, sample cells and carrying case
- USEPA approved/ accepted for drinking water and wastewater