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||Parameter and Range||Part Number||Add to quotation cart|
|CHECKIT® Comparator Chlorine, free DPD, powder reagents||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||147050||
|CHECKIT® Comparator Chlorine, total DPD, powder reagents||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||147051||
|CHECKIT® Comparator Chlorine, free+total DPD (PP)||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||147052||
|Testpak Chlorine DPD, free (powder reagents)||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||147550||
|Testpak Chlorine DPD, total (powder reagents)||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||147551||
|Title||Method No.||Parameter and Range||Packaging Unit||Part Number||Add to quotation cart|
|VARIO Chlorine Free DPD F5||M2508||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||Powder / 100 pc.||530090||
|VARIO Chlorine Free DPD F5||M2508||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||Powder / 1000 pc.||530093||
|VARIO Chlorine Total DPD F5||M2508||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||Powder / 100 pc.||530080||
|VARIO Chlorine Total DPD F5||M2508||Chlorine VARIO PP 0 - 3.5 mg/L Cl2||Powder / 1000 pc.||530083||
|Accessory Type||Title||Part Number||Add to quotation cart|
|CHECKIT® Disc Chlorine DPD, powder reagents||146050||
|Title||Online Download Type||Format||Language||Direct Download|
|Instruction Manual CHECKIT Comparator Vario PP Chlorine free, combined, total (Method No.: M2508)||Instruction Manual||PDF (0.48 MB)|
|Title||SDS Country||Direct Download|
|Vario Chlorine Free - DPD F5_F10_F25_PD 250|
|Vario Chlorine Total - DPD F5_F10_F25_PD250|