Details: dpd powder sachet for determination of free chlorine in treated water or treated waste waterspecification:specification for dpd powder for determination of free chlorine in treated water or treated waste waterthe dpd (n,n-diethyl-1.4-phenylendiamine)powder pouch for single test of residual chlorine is required for measuring range between 0.02 to 3.5 mg/l in chlorine treated water or waste water through any photometer/ spectrophotometer at the wave length of 530 nm if sample is taken in the cuvette of 24 mm. specified data for determination/procedure will be in accordance with iso 8466- 1 and din 38402 a51specified data for proceduresensitivity ( ) of 1 mg/l 0,43 ext. / (mg/l)limit of detection (blanc procedure) 3 x s(blanc) 0,01 mg/llimit of quantification (blanc procedure) 9 x s(blanc) 0,03 mg/lconfidence interval (95%) +/- 0,049 mg/lmethod standard deviation 0,021 mg/lmethod variation coefficient +/- 1,13 %shelf life: 5 yearspackaging:individual stick like air tight sealed pac
Sector: Water supply and Sewerage