°f / ppm
Solution for the buffering of strongly alkaline water samples
Special indicator in powder form for the rapid colorimetric determination of minimum hardness traces in the range 0-0.1 °dH, 0-1.8 ppm CaCO3 or 0-0.2 °f (French hardness). Complete with measuring tube and spoon. Analyses: approx. 700 Measuring time: approx. ½ minute
Titration kit for the determination of water hardness via complexometric titration 1 drop corresponds to 1 degree of French hardnessAnalyses: approx. 30 (at an average hardness of 10 °f) This product is available in following versions: 1 pcs.50 pcs. neutral inlays without folding box Kit for 50 pcs. neutral inlays without folding box 50 pcs. neutral inlays with neutral folding box
Test kit for the determination of water hardness across all hardness ranges via complexometric titration with a liquid titration agent and a pipette, accurately calibrated in °f hardness unit. Description Complete with measuring tube, pipette calibrated from 0-60 °f, special junction stopper, liquid indicator and 50 ml titration solution. Analyses: approx. 100 (at an average hardness of 26,7 °f) Measuring time: approx. 2 minutes Accuracy: 1°f
Test kit for the determination of water hardness across all hardness ranges via complexometric titration with a liquid titration agent and a pipette, accurately calibrated in °f hardness unit. Description Complete with measuring tube, pipette calibrated from 0-60 °f, special junction stopper, powder indicator and 50 ml titration solution. Analyses: approx. 100 (at an average hardness of 26,7 °f) Measuring time: approx. 2 minutes Accuracy: 1°f
DUROVAL® TF is an industrial test kit for the determination of water hardness across all hardness ranges via complexometric titration with a liquid titration agent and a pipette, accurately calibrated in hardness units. Especially recommendable as initial equipment for water softening installation. Description Complete with measuring tube, pipette calibrated from 0-4 °f (French hardness), special junction stopper, powder indicator and titration solution. Analyses: approx. 60 (at an average hardness of 26,7 °f) Measuring time: approx. 2 minutes Accuracy: 1 °f
As test kit type TI, but with liquid indicator and dosing pipette calibrated on0-60 ° f (French hardness).