This is an enlarged image the Indigo® test strip color chart that comes with our high level, 0-1500ppm quaternary ammonium chloride (QAC) test strips.
All Indigo® Quat (QAC) test strips come in 100 (not 50) strips per pack & 3 year minimum guaranteed shelf life backed by a Certificate of Analysis, Stability & SDS documents as listed below; Certificate of Conformance on request. Be prepared for any health & safety audit or inspection.
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.
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.