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Regularly: $4.89/Each

  • Tests 0-500ppm
  • Includes dispenser, color chart, and (1) 15-ft. roll of test paper
  • Easy-to-read color chart for immediate results
  • Measures quaternary sanitizing agents to detect exhaustion or excessive amounts
  • Use with 3rd, 4th, and 5th generation quaternary sanitizers
  • Provides approximately 200 tests
  • Simple, reliable, and economical

UPC Code:




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Length 15 Feet
Package Size 1 Rolls
Test Level 0 - 500 PPM
Type Quaternary Test Strips


Quaternary test paper is the simple, reliable, and economical way to measure the concentration of quaternary sanitizers, particularly multi-quat, broad range quaternary ammonium sanitizer solutions (3rd, 4th, and 5th generation). This Noble Chemical QT-40 test paper measures concentrations between 0-500ppm (parts per million), with color matches at 0, 150, 200, 400, and 500ppm. The distinct color match at each full unit makes it easy for the user to detect exhaustion of solutions that should be replaced. It also helps avoid the use of excessive amounts of sanitizing agents, to avoid wasting product! Simply tear off a small strip of test paper, dip the strip into the sanitizing solution for 10 seconds, then instantly compare the resulting color with the color chart. The distinct color chart and accurate, reproducible readings give an immediate response for quick and easy use.

Federal, state, and local health regulations require users of quaternary ammonium sanitizer solutions to have appropriate test kits available to verify the strength of sanitizer solutions. Sanitizer solutions are essential in the food service industry to ensure that sanitizers are at the proper concentration specified by the individual manufacturer.

The test solution should be between 65 and 75 degrees Fahrenheit. Do not test foam. Contact your local, state or federal health department for quaternary ammonium sanitizer concentration requirements. These concentrations may vary depending on your specific application. This test paper should not be stored in an area with high humidity or in an area where they may be exposed to water before use.

Equivalent Items

Equivalent items and any associated illustrations or descriptions are presented for your reference. These are items which, based on available manufacturer information, are comparable to the stated original item. These items are not necessarily authorized, sponsored, or endorsed by the manufacturer of the stated item, or by the manufacturers of equipment compatible with the stated item; any OEM names mentioned are registered trademarks.
Hydrion QT-40

Customer Reviews

  • Overall User Rating: Noble Chemical QT-40 Quaternary Test Paper Dispenser - 0-500ppm

    5.0 stars from 3 reviews


    People Talk About:

    sanitizer strips tester easy kit kitchen space dip department cut

    Handy pack to have around in case the shared commercial kitchen space runs out of sanitizer strips while I'm there. You never know what to expect sharing kitchen space so this item is part of my emergency back-up supply kit, my "inspection" kit I refer to it as!

    from The Savage Patch Posted on

    Wow the squads tester strips are really nice I'm impressed it was very easy to use very easy to Rees read comparison chart you simply dip it into your sanitizer well you rip off a piece that's about as long as you wanted to be instead of just going with whatever size strips they cut you rip off how much you need to step it in your sanitizer and bing bang boom you're done

    from N/A Posted on


    I am using everyday several times this hydrion quaternary test paper to check my sanitizer water as health department requires. It is very useful and quick result.

    Posted on

    Quaternary test paper

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