Machery nagel Fluoride test. The fluoride test is especially suited for rapid control of fluoride concentrations. Its purpose is to define concentration ranges and to detect values which fall short of or exceed given limits. Chlorates and bromates cause white discolourations of the test paper. Addition of sodium dithionite (Na2S2O4) will circumvent this interference without affecting the fluoride test
Type | Special test paper |
Presentation | Box of 30 test discs with reagent |
Colour reaction | red → white |
Gradation | 0 · 2 · 5 · 10 · 20 · 50 · 100 mg/l F– |
REF | 90734 |