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Chlorine with Tablet

0.1 - 6.0 mg/l Cl2 a) Mark as favourite

Chlorine is the most popular and widely used of the disinfectants. The chlorination of water supplies, swimming pools and cooling tower waters are but a few of the everyday applications.

Free Chlorine (hypochlorous acid) reacts with Ammonia and certain Nitrogenous compounds to form Combined Chlorine. With Ammonia, the reaction produces chloramines which have very little disinfecting power, thus it is important to be able to determine the various fractions of Chlorine present at any one time.

DPD (NN Diethyl p Phenylene Diamine Sulphate) is the preferred reagent for the determination of Free, Combined and Total Chlorine. It is available in Tablet, Liquid and Powder form. A list of compatible instrumentation and test kits can be found below.

Total Chlorine can also be measured using a Potassium Iodide reagent. This can measure concentrations of up to 300 mg/l chlorine and is widely used in food manufacturing and industrial water treatment.


  • Pool Water Control
Title Parameter and Range Part Number Mark as favourite
Test equipment for the responsible private swimming pool and whirlpool operator
Alkalinity-m T 0 - 300 mg/l CaCO3
Bromine T 0.2 - 13 mg/l Br2
Chlorine T 0.1 - 6.0 mg/l Cl2 a)
CyA T 1 - 160 mg/l CyA
pH-value T 6.5 - 8.4
Title Method No. Packaging Unit Part Number Mark as favourite
Refill Pack Scuba II M100 1 pc. 525600
Title Online Download Type Format Language Direct Download
Instruction Manual Single Method M100 - Chlorine T Instruction Manual PDF (0.75 MB)