Hydrion QT-40 Quaternary Sanitizer Test Tape 15 feet Roll Quat Color Chart 0-500 ppm Range

Works

Good!

Perfect for our food trailer and the health department approves

Bought to test home water line - works great, inexpensive.

My only complaint is the container is open and is around water so it’s only a matter of time before an employee puts it down to close to water. Every single roll of these I ever bought ends up soaked and ruined with in a week of buying them. And yes I have a place for it and told all the staff not to leave it near water but it always does. Very frustrating design.

Good stuff

Great to use.

Started using Quat tab since COVD-19 (1 tab to 1 gallon of water with spray bottles). Read somewhere cotton cloth is no good because cotton binds to the ions rendering Quat tab ineffective. Decided to experiment. From the picture there are 6 test strips. Starting at extreme right, solid green was from a freshly made Quat tab batch in one gallon of water. To the left a lighter shade of green tested immediately after dropping cotton towel. To the left of that the almost yellow looking strip was tested about 1 minute after towel was in bucket.

It was very good.

Perfect little pack. Nothing fancy, but compliant for manufacturing.