CTK Härte Gesamt

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 total hardness in the range 0.0 to 30.0 mg / l / 0 to 300 mg / l (ppm). 100 Tests