CTK Chlor Frei

A test kit for the determination of chemical sulphite in the range 0 to 20 mg / l / 0 to 200 mg / l (ppm). 110 tests

Chemical test kit for the determination of carbon dioxide in the range 0 to 10 mg / l / 0 to 50 mg / l / 0 to 100 mg / l (ppm).