
Water analysis
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CALDUR® Carbonate hardness – Scientific
Determination of carbonate hardness in water by syringe titration (0-20 °dH) -
CALDUR® Carbonate hardness CH – Titration
Determination of carbonate hardness in water by titration (0-20 °dH) -
CALDUR® Carbonate hardness CH 5 – Titration
Determination of carbonate hardness in water by titration (0-10 °dH, high resolution) -
CALDUR® Chloride – Titration
Determination of chloride in water by titration (5-250 mg/l Cl-) -
CALDUR® Chlorine (free) – Colorimetric
Chlorine (free) determination in water by color chart (0.05-1.0 mg/l Cl₂) -
CALDUR® Chlorine (free) – Photometric
Chlorine (free) determination in water using a photometer (0.05-1.0 mg/l Cl₂) -
CALDUR® Chlorine dioxide – Colorimetric
Determination of chlorine dioxide in water using a color chart (0.05-0.5 mg/l) -
CALDUR® Chlorine dioxide – Photometric
Determination of chlorine dioxide in water photometrically (0.05-0.5 mg/l) -
CALDUR® Chlorine HR (free + combined) – Colorimetric
Chlorine HR determination (free + bound) in water by color chart (1-10 mg/l Cl₂) -
CALDUR® Chlorine HR (free + combined) – Photometric
Chlorine HR determination (free + bound) in water using a photometer (1-10 mg/l Cl₂) -
CALDUR® Chlorine LR (free + combined) – Colorimetric
Chlorine determination (free + bound) in water using a color chart (0.05-1.0 mg/l Cl₂) -
CALDUR® Chlorine LR (free + combined) – Photometric
Chlorine determination (free + bound) in water photometrically (0.05-1.0 mg/l Cl₂)
Which instrument suits your application?
Tell us the parameter, measuring range and place of use – for example residual hardness after softening in the boiler house. We will recommend the right analyser or test kit and the matching accessories.
Made in GermanyISO 9001 (TÜV NORD)Experience since 1975personal advice










