L-0206
Laboratory, Counterlab Rx 2™ (complete), FAS-DPD
- UPC Barcode:
- 840036028469
$1,187.26
Description of Tests
Analyte | System | Method/Chemistry | Standard/Equivalance or Description | Comparator | Cell |
---|---|---|---|---|---|
Alkalinity, Total | Drop test | Blended indicator | 1 drop = 10 ppm total alkalinity as CaCO₃ | NA | 9198L |
Hardness, Calcium | Drop test | EDTA titration (includes inhibitors to prevent metal interference) | 1 drop = 10 ppm calcium hardness as CaCO₃ | NA | 9198L |
Chlorine, Free & Combined | Drop test | FAS-DPD | 1 drop = 0.2 or 0.5 ppm chlorine (Cl₂) | NA | 9198L |
Cyanuric Acid | Visual determination | Turbidimetric | 30, 40, 50, 60, 70, 80, 90, 100 ppm CYA | 4088 | NA |
pH w/ acid/base demand | Color viewer | Phenol red | 7.0, 7.2, 7.4, 7.6, 7.8, 8.0 | 6125T | NA |
Potential Interferences
Test Parameter | Description |
---|---|
Metal ions may cause interference; to prevent, add titrant containing EDTA to sample before buffer and indicator, then test as normal making sure to count drops of titrant added initially in total required to reach endpoint. If interference still occurs, dilute sample with DI water as necessary and retest. | Calcium, Magnesium, Total Hardness |
Chlorine levels > approx. 25 ppm may bleach out indicator or cause sample to develop a brown color; to prevent, add more DPD powder or dilute sample with DI water as necessary and retest. Other halogens and oxidized manganese may cause positive interference. | Chlorine |
Iron > 10 ppm may cause negative interference. | pH |
Sanitizer levels > approx. 10 ppm may cause a blue-purple color resulting in false high readings. Wait for sanitizer level to decrease to normal levels and retest to assure an accurate reading. | pH |
High halogen level may change indicator reaction from green/red to blue/yellow; to prevent, add thiosulfate prior to testing. | Total Alkalinity |
Shelf Life Concerns
TEST STRIP SHELF LIFE
As with all perishables, test strips are sensitive to environmental influences and will last longer under controlled conditions.
To this end, we recommend:
- Storing test strips at a consistent temperature in the range of 36°–85°F (2°–29°C); storing test strips in a refrigerator can prolong the shelf life, but the bottle must be warmed to room temperature before opening to avoid condensation.
- Keeping them out of prolonged direct sunlight.
- Segregating test strips from containers of treatment chemicals.
- Replacing bottle lids immediately to reduce exposure to air and humidity.
Taylor formulates its test strips to remain effective for two years, the only exception being Salt test strips which last one year. As a general precaution, replace all test strips more than one year old, or at the beginning of a new testing season.
Documents
Kit Layout
Instructions
Suggested Items
Accessories
Kit Video K-2005
Warnings
WARNING: Cancer – www.P65Warnings.ca.gov