Liquid Chemistry – Manual Test Kits: DUROGNOST® Limit Value Test Kits
DUROGNOST® limit value test kits enable quick and easy visual testing of water parameters to determine whether certain limit values have been reached or exceeded. They are particularly suitable for applications where a simple yes/no answer is sufficient, such as when checking water hardness in water softening systems.
Typical applications:
• Monitoring residual hardness in soft water systems
• Checking threshold values in drinking and process water
• Easy on-site control without measurement devices
Available accessories:
• Pipettes for various test kits
• Screw-top glass with calibration mark and lid
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
LIMIT VALUE TEST KIT Liquid special indicator in dropper bottle for the monitoring of softened water, set for the limit values of 0.5 and 0.25 °dH (8,9 and 4,47 ppm). Description Complete with measuring tube and stopper Analyses: approx. 250 Measuring time: approx. ½ minute
LIMIT VALUE TEST KIT Liquid special indicator in dropper bottle for the monitoring of softened water, set for the limit values of 0.1 and 0.05 °dH (1,79 and 0,89 ppm).DescriptionComplete with measuring tube and stopper Analyses: approx. 250Measuring time: approx. ½ minute
LIMIT VALUE TEST KIT Liquid special indicator in dropper bottle for the monitoring of softened water, set for the limit values of 1 and 0.5 °dH (17,9 and 8,9 ppm). Description Complete with measuring tube and stopper Analyses: approx. 250 Measuring time: approx. ½ minute