DPD N°4 Reagents Tablets (50) – for Pool Photometers TISHED50 you can use the reagent

you can use the reagent to test pool water conditions and trust that the results are accurate

then the hydrogen carbonate ion combines with these to form carbonic acid (which in turn dissolves into carbon dioxide and water) and water

Method-correct filtration: supports the sample prep step required for these tests

it achieves accuracy comparable to a spectrophotometer

DPD N°4 Reagents Tablets (50) – for Pool Photometers TISHED50 you can use the reagentDPD N4 Reagents Tablets (50) are photometer compatible replacement refill reagent tablets used for accurate pool & spa testing. Key Specs Product type: Replacement refill reagent tablets (consumable) Test parameter: Active oxygen Format: Tablet reagent (50 tablets) Shelf life: 2 years (sealed, stored properly) What this reagent does DPD N 4 is a reagent used by compatible photometers to measure Active oxygen. Water disinfected with persulfate