Test en tube Dureté totale Méthode: photométrique 5 – 215 mg/l Ca 0.7 – 30.1 °d 0.9 – 37.6 °e 1.2 – 53.7 ° f 7 – 301 mg/l CaO 12 – 537 mg/l CaCO3 Spectroquant® – 25 Tests