Delhi Jal Board

Delhi Jal Board has published Procurement Of Dpd Powder / Sachet For Determination Of Chlorine In Water / Waste Water Labs Under The Division Of Cwa(Wns)-Ii. , Specification For Dpd Powder For Determination Of Total Chlorine In Treated Water Or Treated Waste Water The 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 A51. The Dpd Powder Must Be Free From Boric Acid And Based On Green Chemist Specified Data For Procedure Sensitivity (Slope) Of 1 Mg/L 0,43 Ext. /(Mg/L) Limit Of Detection3 X S (Blanc Procedure) (Blanc) 0,01Mg/L Limit Of Quantification 9 X S (Blanc Procedure) (Blanc) 0,03Mg/L Confidence Interval (95%) +/- 0,049 Mg/L Method Standard Deviation 0,021 Mg/L Method Variation Coefficient +/- 1,13% Shelf Life: 5 Years Packaging: Individual Stick Like Air Tight Sealed Pack With Narrow Geometry Ensuring Moisture Free And Long Shelf Life Of The Reagent.. Last date of submission for this tender is 2022-02-26. This is a Chemical Supply tender in Delhi, Delhi