
Method
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CALDUR® Sulfite T – Titrimetric
Sulfite determination in water by titration (5 mg/l SO₃²⁻ per drop) -
CALDUR® Ammonium – Colorimetric
Determination of ammonium in water using a color chart (0.1-10 mg/l NH₄⁺) -
CALDUR® Ammonium – Photometric
Ammonium determination in water photometric (0.1-3 mg/l NH₄⁺) -
CALDUR® Ascorbic acid – Colorimetric
Ascorbic acid determination in water using a color chart (0.1-10 mg/l C₆H₈O₆) -
CALDUR® Ascorbic acid – Photometric
Ascorbic acid determination in water using a photometer (0.1-10 mg/l) -
CALDUR® Carbonate hardness – Scientific
Determination of carbonate hardness in water by spray 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)
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








