Residual Quat 10-100 ppm

SKU: 33819-100

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Accurate Indigo® 0–100 ppm quat (QAC) test strips for detecting sanitizer residues on food, equipment, and packaging. Supports HACCP, FDA, USDA organic & export compliance.

Indigo® residual quat test strips (10–100 ppm range) can verify low-level sanitizer residues in food, beverage, and agricultural settings. Quaternary ammonium compounds (QACs, or “quats”) are widely used as disinfectants and surface sanitizers because of their strong antimicrobial activity.

However, in organic food production, export markets, and HACCP programs, residual quat levels need remain below regulatory limits. These 10–100 ppm QAC test strips provide fast, reliable on-site testing for processors, inspectors, and certification auditors & are important for organic food certification. The strips are particularly sensitive to cetylpyridinium chloride which is used to treat chicken for microbes such as Salmonella sp.

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.
Details Specs Docs Reviews
Details

The directions on the test strip bottle are for testing liquid quat solutions. Test surfaces for residues by first wetting the strip's testing pad with water (deionized or distilled if available). Then press against fruits, vegetables, cutting boards, utensils, etc. for at least 10 seconds & then compare against the color chart.

Levels less than "10" ppm are impossible to determine but some organic certifications call for "0" ppm. This is because water alone causes a reading of 10ppm. Read more in our blog on What 10ppm really means? when measured on surfaces of knives, cutting boards, fruits or vegetables.

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Specifications

Swish strip in liquid 5 times & then compare to color chart after 10 seconds for reading at ≤10-30-60-80-100ppm ppm for quaternary ammonium disinfectant concentration.

  • Indigo® 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.
  • For technical explanation, read: Sanitizer Test Strip Expiration; Good Today, Dead Tomorrow?
  • These strips measure any quat formulation
  • Indigo® QAC test strips are calibrated for Oasis 146: see details. Consult your supplier if necessary.
  • The number of strips (100) per vial is approximate.
Documentation

Test Strip Documentation
Stability Statement Certificate of Analysis SDS
Indigo Quat - QAC Test Strips 10-100ppm Stability Statement Indigo Quat - QAC Test Strips 10-100ppm Certificate of Analysis Indigo Quat - QAC Test Strips 10-100ppm SDS

Indigo® brand test strips are Made in USA & tested for accuracy using NIST compliant standards. Be prepared for any health & safety audit or inspection.

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