Delhi Jal Board-DJB 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-Dieth. Submission Date for this Tender is 26-02-2022. Chemical Supply Tenders in Delhi Delhi. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 23-Feb-2022 | Correction in specification in BOQ | Technical Bid | 26-02-2022 |
| Sl. No. | Item Description |
| 1 | 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. |
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