Buy Indigo® brand 0-1500ppm multi quat sanitizer test strips for hospital & dairy disinfection. Safe shopping for best bang for buck? Buying just 3 packs of our 100 strips costs less than their "free" shipping! Be prepared for any health & safety emergency or inspection.
Fully backed by our 3 year minimum guaranteed shelf life & documentation including Certificate of Analysis, Stability & SDS. Certificate of Conformance available on request.
Note: Read strip results immediately. If you wait the 30 seconds needed for some other strips you will get a reading that is too high.
High level QAC plastic test strips measure up to 1500ppm in increments of 200, 400, 750, 1000 and 1500 ppm. This higher level can compensate for the diluting effect of quat binding. This is where a positively charged quaternary ammonium compound is attracted & absorbed by negatively charged fabrics such as cotton, nonwoven towels and other natural textiles used in mops & cloths.
Quat binding can reduce the effective disinfectant level by as much as 50%, rendering it non-compliant with FDA usage guidelines for controlling healthcare associated infection caused by pathogens such as VRE, MRSA, HIV & TB which can remain viable on doorknobs, handrails, sinks.
All Indigo® Quat (QAC) test strips have a 3 year minimum guaranteed shelf life & come with a Certificate of Analysis, Stability & SDS documents listed below; Certificate of Conformance on request. Be prepared for any health & safety audit or inspection.
Do not use hot water. Water warmer than 40C/105F may give false high readings.
The simple answer for "not in the desirable range" is to add more Quat concentrate if the reading is low. Add more water if the reading is high. Then retest. Don't worry about being exact, you can be +/- 10% without major consequences.
You may also find this useful: details on high level quat strips. If you run into repeated problems with getting the right concentration, try our Dilution Equation Calculator.
Test Strip Documentation |
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Stability Statement | Certificate of Analysis | SDS | ||
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Indigo® brand test strips are Made in USA & tested for accuracy using NIST compliant standards.