When using quat paper to test my sanitizer solution, I keep getting readings around 300 PPM instead of the required 200 PPM. Is there a reason for this?
Three things can be happening here. First, your dilution control equipment may have applied too much concentrate, thus the high readings. Secondly, old quat test paper isn’t very accurate and can sometimes read 75 to 100 PPM high. Third, water temperature should be maintained between 70°F and 80°F as higher temperature will give false readings. For best results, a quat titration kit should be used. These kits are accurate within 10 PPM. They are available from LaMotte Labs (800) 344-3100 or www.lamotte.com under part number 3034-DR.
Related Questions
- What is the treatment using acidic phosphate flouride solution as you mentioned in your paper? Is this how dentists normally repair early caries lesions?
- When using quat paper to test my sanitizer solution, I keep getting readings around 300 PPM instead of the required 200 PPM. Is there a reason for this?
- Is it a Paper Based Test (PBT) or Computer Based Test (CBT)?
