Indigo® brand 0-1500ppm QAC test strips can reveal whether your multi-quat sanitizer is compromised by quat binding. Quat binding occurs when quaternary ammonium disinfectants are absorbed by cleaning tools such as cotton mops, cellulose sponges, or microfiber cloths.
These materials have high surface areas that “soak up” the sanitizer, leaving less active quat in your bucket or spray solution. This can result in concentrations well below the target range, even if the sanitizer was mixed correctly. To avoid quat binding, choose cleaning materials that are resistant to absorption, such as polyester, nylon, or polypropylene cloths, mop heads, and scrub pads. Use Indigo® 0–1500 ppm QAC test strips to detect quat binding in seconds; verify your sanitizer effectiveness today, order now!
We've been selling quaternary ammonium (quat) test strips since 2007. Buy best-in class, fully documented Indigo® QAC test strips, 100 strips/pack with a guaranteed 3 year shelf life (dated back from expiration date "yyyy.mm.dd"); see storage requirements in Specifications.
Use non-binding cleaning materials & tools (polyester or disposable wipes)
test sanitizer strength regularly with 0–1500 ppm quat strips, and adjust solution levels as needed.
If the test strip is below the desired range", more Quat concentrate.
If the reading is too high Add more water if the reading is high.
Retest but note you can be +/- 10% without major consequences.
Do not use water warmer than 40C/105F which may give false high readings.
To put it another way: reduce quat binding by avoiding cotton, cellulose, or standard microfiber cloths and mop heads. Instead, use polyester, nylon, or polypropylene cleaning tools, or quat-compatible microfiber cloths. Disposable polyester/nylon wipes are another option in situations where re-use would cause too much quat absorption.
Dip strip & remove for immediate reading at 200-400-750-1000-1500 ppm for quaternary ammonium disinfectant concentration. Read strip results immediately. If you wait the 30 seconds needed for some other strips you will get a reading that is too high.
Indigo® quat test strips have a guaranteed minimum 3 year shelf life but are stored in desiccant lined vials so actual shelf life can be 5+ years.
Store in original vial in a cool, 20-30C, dry, place out of direct sunlight.
Detection limit: 50ppm; Accuracy: +/- ½ color chart unit
Indigo® QAC test strips are calibrated for Oasis 146: see details. Consult your supplier if necessary.
Hard water (above 500 ppm) can cause the strips to read high, up to 1 unit.
The number of strips (100) per vial is approximate.
Reviews (3)
2020-06-19
Great product, very easy to use and understand.
— Tony Mack
2019-05-13
Excellent website, and quick delivery.
Very happy with service.
— Stu
2017-01-17
These guys are great! I can send in a technical question at the oddest hour and get a reply. Extremely customer focused and always willing to help. Every project that we have worked on together has been successful.
— Mike
— Indigo: You & your company are a pleasure to work with.
