Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets - Pool
Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets - Pool
Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets - Pool
Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets - Pool
Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets - Pool
Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets - Pool
Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets - Pool

Reagents for Pool LAB - Testing DPD N° 4 - 50 Tablets

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Active oxygen | 0.0 - 30.0 mg/l (ppm) | reagent for measurements - DPD N° 4

In Northern latitudes, active oxygen is a particularly popular alternative disinfectant to chlorine. Principally, however, for purposes of measurement what counts is whether the medium used contains persulfate or peroxide. Water disinfected with persulfate-containing media is measured according to the DPD N° 4 method. When using peroxide containing disinfection media, Hydrogen Peroxide tablets are used in connection with the Acidifying PT tablets. In both cases, the “Active Oxygen (O2)“ designation is in fact misleading. It is not the molecular Oxygen that oxidizes (disinfects); rather it is an Oxygen radical which quite quickly combines with an additional radical to form molecular Oxygen (the air one breathes). This is also the main disadvantage to this method; because the disinfection effect does not last long and the effect is rather limited. As a strict rule, therefore, Chlorine is added in regular intervals when Active Oxygen is used for disinfection. Yet with the DPD N° 4 method false readings can then result (when simultaneously using both Chlorine and Active Oxygen), because the potassium iodide contained in this tablet catalytically splits the persulfates and thus the sum of persulfate and chlorine is indicated

  1. Active oxygen | 0.0 - 30.0 mg/l (ppm) | reagent for measurements - DPD N°4.BUY NOW
  2. pH value | 6.5 - 8.4 mg/l (ppm) | reagent for measurements - Phenol Red.BUY NOW
  3. Acid capacity (alkalinity) | 0.0 - 200 mg/l (ppm) | reagent for measurements -  Alkalinity-M.BUY NOW
  4. Cyanuric acid (stabilizer) | 0.0 - 160 mg/l (ppm) | reagent for measurements CYA-Test.BUY NOW
  5.  Bromine | 0.0 - 13.5 mg/l (ppm) | reagent for measurements - DPD N°1Glycine. BUY NOW
  6. Chlorine Free | 0.0 - 8.0 mg/l (ppm) | reagent for measurements - DPD N°1. BUY NOW
  7. Chlorine Total | 0.0 - 8.0 mg/l (ppm) | reagent for measurements - DPD N°1 DPD N°3. BUY NOW
  8. Chlorine dioxide | 0.0 - 11.4 mg/l (ppm) | reagent for measurements - Glycine.BUY NOW
  9. Ozone | 0.0 - 4.0 mg/l (ppm) | reagent for measurements - DPD N°1DPD N°3Glycine.BUY NOW
  10. Total hardness | 0.0 - 500.0 mg/l (ppm) | reagent for measurements - Total hardness 1+2.BUY NOW
  11. Hydrogen peroxide HR | 0.0 - 2.9 mg/l (ppm) | reagent for measurements - Hyd. Peroxide HR.BUY NOW
  12. Hydrogen peroxide LR | 0.0 - 2.9 mg/l (ppm) | reagent for measurements - Hyd. Peroxide LR.BUY NOW
  13. Calcium hardness | 0.0 - 500.0 mg/l (ppm) | reagent for measurements - Calcium hardness 1+2.BUY NOW
  14. PHMB | 5.0 - 6.0 ml/l (ppm) | reagent for measurements - PHMB.BUY NOW
  15. Urea | 0.1 - 2.5 ml/l (ppm) | reagent for measurements - PL Urea 1, PL Urea 2, Ammonia 1, Ammonia 2. Pre-Order - Сontact us to order