The indicator usually used in tablet form which measures chlorine and bromine levels in pool and spa water. DPD is an abbreviation for Diethyl-p-Phenylene Diamine. DPD1 tablets are used for measuring free chlorine. DPD3 tablets are for total chlorine. See also Bleaching Out.
A reagent and test method that specifically measures bromine or free available and total chlorine; produces a series of colors from pale pink to dark red.
one of the preferred methods to test for Free Chlorine. Variations can be used to test for the other forms of chlorine.
The preferred reagent used in test kits to measure and indicate free available chlorine. The presence of chlorine turns the indicator pink.
Technical name "Diethyl-P-Phenylene Diamine" is an indicator reagent for chlorine testing. D.P.D. #1 tests for free available chlorine. D.P.D. #3 tests for total chlorine.
An indicator solution used to measure the free chlorine residual.
The reagent used in test kits to determine chlorine.
Is a reagent that determines free available chlorine in pool water. There is also a DPD test for total chlorine. A pink color indicates chlorine is present.
The test reagent used to measure and indicated chlorine levels. The presence of chlorine turns the indicator to pink.
A testing reagent used to test for oxidizers in the water such as chlorine, bromine, ozone and other oxidizers.
Chemically, N,N-diethyl-p-phenylenediamine. An indicator reagent used for the determination of free and total chlorine, bromine, ozone and other oxidizers in water. Better than using OTO for chlorine because it measures free chlorine.
A method of testing for chlorine levels in the pool water. Unlike OTO, DPD testing allows determination of total and free available chlorine levels, which, through subtraction, gives us combined levels.
a testing reagent (typically in tablet form) used to measure chlorine or bromine. #1 tests for Free Available Chlorine, #3 tests for Total Chlorine, #4 tests for Combined Chlorine.
(pronounce as separate letters). A method of measuring the chlorine residual in water. The residual may be determined by either titrating or comparing a developed color with color standards. DPD stands for N,N-diethyl-p- phenylene-diamine.
method is US EPA accepted for reporting drinking water analyses (Free and Total Chlorine) and wastewater analyses (Total Chlorine only). Please refer to the “Standard methods for the Examination of Water and Wastewater” and US EPA method 330.5 for wastewater and Standard Method 4500-Cl G for drinking water for more information.
A common chlorine or bromine test using color change as an indicator. It allows for separate free available and combined chlorine testing.
Chemically, NN iethyl-p- henylene iamine Sulfate. An indicator reagent used to measure free available chlorine (DPD1) and total chlorine (DPD3), bromine, ozone and other oxidizers in water. Far superior to OTO.
an indicator tablet used to measure the free available chlorine residual. Turns red pink in presence of chlorine.
Diethyl-p-phenylene diamine. A reagent and test method that measures free and total available chlorine.