PPB Dissolved Oxygen Testing
CHEMetrics PPB Dissolved Oxygen visual test is ASTM's primary reference standard for detecting dissolved oxygen (DO) in water for boiler applications and power plant operations, with sensitivity down to 2 ppb, with no false negatives and no instrument calibration.
Each low range DO kit includes a special sampling tube that allows the user to break the tip of the ampoule in a flowing sample stream in order to preclude error from contamination by atmospheric oxygen.
|
Purge the system using the special sampling tube attached to water source |
Snap the ampoule by placing the tip at the bottom of the sampling tube |
Obtain test results by viewing the test ampoule and colour comparator from the bottom |
Visual Kits
| Range | MDL | Method | Type | Test Kit | Refill |
|---|---|---|---|---|---|
| 0 - 20 ppb | 2 ppb | Rhodazine D | ULR CHEMets | K-7511 | R-7511 |
| 0 - 40 ppb | 2.5 ppb | Rhodazine D | CHEMets | K-7540 | R-7540 |
| 0 - 100 ppb | 5 ppb | Rhodazine D | CHEMets | K-7599 | R-7540 |
| 5 - 180 ppb | 5 ppb | Rhodazine D | CHEMets | K-7518 | R-7518 |
| 0 - 1 ppm | 0.025 ppm | Rhodazine D | CHEMets | K-7501 | R-7501 |
Photometric Kit
| Range | Method | Type | Test Kit |
|---|---|---|---|
| 0 - 1.000 ppm | Rhodazine D | Vacu-vials | K-7553 |
During my 16-year career as a water treater for high pressure boilers, I have found the CHEMetrics low-level dissolved oxygen ampoules to be extremely reliable. Looking back, I can confidently say I always found each test to be high quality and a result I could use to validate system conditions.