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Chlorine

Chlorine
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.

Title Test Name Measuring Range Method No. Product Type Mark as favourite
Chlorine HR (KI) T (105) 5 - 200 mg/l Cl2
  • M105
Photometer
Chlorine HR PP 0.1 - 8 mg/l Cl2 a)
  • M111
Photometer
Chlorine HR T 0.1 - 10 mg/l Cl2 a)
  • M103
Photometer
Chlorine MR PP 0.02 - 3.5 mg/l Cl2 a)
  • M113
Photometer
Chlorine L 0.02 - 3 mg/l Cl2 a)
  • M101
Photometer
Chlorine L 0.02 - 4.0 mg/l Cl2 a)
  • M101
Photometer
Chlorine PP 0.02 - 2 mg/l Cl2 a)
  • M110
Photometer
Chlorine T 0.01 - 6.0 mg/l Cl2 a)
  • M100
Photometer
Chlorine T 0.1 - 6.0 mg/l Cl2 a)
  • M100
Photometer
Chlorine 10 T 0.1 - 6 mg/l Cl2
  • M98
Photometer
Chlorine 50 T 0.02 - 0.5 mg/l Cl2 a)
  • M99
Photometer
Chlorine T 0.02 - 6.0 mg/l Cl2 a)
  • M100
Photometer
Chlorine 0.1 - 3.0 mg/l Cl2 Test Kit
Chlorine 0.5 - 6.0 mg/l Cl2 Test Kit
Chlorine 15 - 300 mg/l Cl2 Test Kit
Chlorine 1 - 30 % Cl2 Test Kit
Chlorine 0.1 - 50 mg/l Cl2 Test Kit
Chlorine 0.01 - 15 % Cl2 Test Kit
Chlorine 0.2 - 15 % Cl2 Test Kit
Chlorine 100 - 2400 mg/l Cl2 Test Kit
Chlorine HR (KI) T 10 - 300 mg/l Cl2
  • M2510
Test Kit
Chlorine HR T 0 - 4 mg/l Cl2
  • M2507
Test Kit
Chlorine 10 - 200 mg/l Cl2 Test Kit
Chlorine HR T 2.0 - 10 mg/l Cl2
  • M3031
Test Kit
Chlorine HR T 5.0 - 50 mg/l Cl2
  • M3032
Test Kit
Chlorine HR T 5.0 - 250 mg/l Cl2
  • M3033
Test Kit
Chlorine LR T 0 - 1 mg/l Cl2
  • M2505
Test Kit
Chlorine MR T 0 - 2 mg/l Cl2
  • M2506
Test Kit
Chlorine 0 - 6 % Cl2 Test Kit
Chlorine (Textiles) Trace Test Kit
Chlorine Test Kit
Chlorine L 0.01 - 0.1 mg/l Cl2
  • M3120
Test Kit
Chlorine L 0.1 - 1.0 mg/l Cl2
  • M3114
Test Kit
Chlorine L 0.1 - 2.0 mg/l Cl2
  • M3115
Test Kit
Chlorine L 0.02 - 0.2 mg/l Cl2
  • M3121
Test Kit
Chlorine L 0.02 - 0.3 mg/l Cl2
  • M3117
Test Kit
Chlorine L 0.2 - 0.8 mg/l Cl2
  • M3119
Test Kit
Chlorine L 0.2 - 4.0 mg/l Cl2
  • M3118
Test Kit
Chlorine L 0.05 - 0.5 mg/l Cl2
  • M3122
Test Kit
Chlorine L 1.0 - 4.0 mg/l Cl2
  • M3116
Test Kit
Chlorine T 0.1 mg/l Cl2
  • M3028
Test Kit
Chlorine D55 T 0.02 - 0.3 mg/l Cl2 *
  • M2509
Test Kit
Chlorine T 0.02 - 0.5 mg/l Cl2
  • M3015
Test Kit
Chlorine T 0.5 - 4.0 mg/l Cl2
  • M3027
Test Kit
Chlorine T 0.15 - 2.0 mg/l Cl2
  • M3029
Test Kit
Chlorine T 1.0 - 5.0 mg/l Cl2
  • M3030
Test Kit
Chlorine T 1.1 mg/l Cl2
  • M3020
Test Kit
Chlorine T 1.5 mg/l Cl2
  • M3017
Test Kit
Chlorine T 2.0 - 5.0 mg/l Cl2
  • M3025
Test Kit
Chlorine VARIO PP 0 - 3.5 mg/l Cl2
  • M2508
Test Kit