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The HI-94754A-25 are barcode reagent vials that follow the EPA approved method for the low range determination of chemical oxygen demand (COD) using a compatible benchtop photometer.
For professional use only. Please contact our sales representatives to place an order. See warnings listed under the full description below.
These high quality reagents are clearly marked with the lot number and expiry date on each box for traceability.
The HI-94754A-25 COD kit contains 25 ready-to-use, barcoded vials containing pre-measured reagents. These high quality reagents follow the EPA approved method 410.4. In this method, a heated digestion under acidic conditions is required to allow the oxidisable organic compounds present in the sample to reduce hexavalent chromium to trivalent chromium, causing an orange tint in the sample. The intensity of colour is determined by a compatible photometer and the COD concentration is displayed in mg/L (ppm) O2. These reagents are designed to be used with samples that have an expected range of 0 to 150 mg/L (ppm) O2.
| Dichromate EPA Method | ||
| COD - LR | ||
| Range (as O2) | 0 to 150 mg/L | |
| Resolution | 1mg/L | |
| Accuracy | ±5 mg/L ±5% of reading | |
| Pack of 25 vials | HI-93754A-25 | |
| Replacement reagents | HI-94754A-25 | |
| COD - MR | ||
| Range (as O2) | 0 to 1500 mg/L | |
| Resolution | 1mg/L | |
| Accuracy | ±15 mg/L ±4% of reading | |
| Pack of 25 vials | HI-93754B-25 | |
| Replacement reagents | HI-94754B-25 | |
| Dichromate Method | ||
| COD - HR | ||
| Range (as O2) | 0 to 15000 mg/L | |
| Resolution | 10mg/L | |
| Accuracy | ±150 mg/L ±3% of reading | |
| Pack of 25 vials | HI-93754C-25 | |
| Replacement reagents | HI-94754C-25 | |
| Dichromate Mercury-Free Method | ||
| COD - LR | ||
| Range (as O2) | 0 to 150 mg/L | |
| Resolution | 1mg/L | |
| Accuracy | ±5 mg/L ±5% of reading | |
| Pack of 25 vials | HI-93754D-25 | |
| Replacement reagents | HI-94754D-25 | |
| COD - MR | ||
| Range (as O2) | 0 to 1500 mg/L | |
| Resolution | 1mg/L | |
| Accuracy | ±15 mg/L ±4% of reading | |
| Pack of 25 vials | HI-93754E-25 | |
| Replacement reagents | HI-94754E-25 | |
| Dichromate ISO Method | ||
| COD - LR | ||
| Range (as O2) | 0 to 150 mg/L | |
| Resolution | 1mg/L | |
| Accuracy | ±5 mg/L ±5% of reading | |
| Pack of 25 vials | HI-93754F-25 | |
| Replacement reagents | HI-94754F-25 | |
| COD - MR | ||
| Range (as O2) | 0 to 1500 mg/L | |
| Resolution | 1mg/L | |
| Accuracy | ±15 mg/L ±4% of reading | |
| Pack of 25 vials | HI-93754G-25 | |
| Replacement reagents | HI-94754G-25 |
Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
US$40
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