The Hydrion QT-40 is a widely used, simple test paper strip for measuring the concentration of quaternary ammonium sanitizers (quats) in food service and healthcare, ensuring they meet safety standards. It provides quick visual color matches from 0 to 500 ppm (parts per million) with specific levels at 0, 150, 200, 400, and 500 ppm, helping users confirm sanitizer strength, detect depletion, and avoid overuse.

Key Features & Use:
Purpose: Verify quat sanitizer strength for hygiene compliance.
Range: Measures 0-500 ppm.
Color Matches: 0, 150, 200, 400, 500 ppm.

How to Use: Dip a strip for 10 seconds in the solution (65-75°F), then compare the resulting color to the chart on the dispenser.
Packaging: Comes in a roll within a protective case with a serrated edge for easy tearing.

Why it’s important:
Regulatory Compliance: Federal, state, and local health codes often require testing sanitizer strength.
Safety: Ensures sanitizers are strong enough to kill germs but not so strong they’re wasteful or harmful.
Efficiency: Helps identify when solutions need replacing.