Residual Quat 10-100 ppm

SKU: 33819-100

$11.95USD or lower Each

Save More When You Buy More!
Quantity1+10+ 100+ 
Price for each$11.95USD$10.80USD$9.65USD
Your savings - 9.62%19.25%

These quat test strips measure residual QAC levels from 10-100ppm in liquids or on the surfaces of utensils; only $11.95 Pack/100.

Note: the directions on the bottle are for testing a liquid. See below for important information.


To test for residues simply wet the strip's testing pad with water (deionized or distilled if available) & press against the surfaces of 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 current rules for organic certification call for "0" ppm. This is next to impossible & unrealistic since water alone causes a reading of 10ppm. Read more in our blog on what 10ppm really means when measured on a knife or other surface.

  • Strips come in desiccant lined bottle that absorbs moisture once opened.
  • Best used within 6 months of opening.
  • Guaranteed 2 year shelf life but can last 5 years if unopened.
  • These strips measure free (available) chlorine
  • The number of strips (100) per vial is approximate.


Test Strip Documentation

Stability Statement Certificate of Analysis
Reviews ()
Review This Product Now!