Use when making "quats" solutions in hard water,
or for verifying more concentrated solutions for sanitizing
non-food-contact surfaces such as walls and floors or boots and
cleaning tools.
Some operations treat processing equipment with high
"quats" concentrations first (~800 PPM), then follow with a plain
rinse or final application of a normal "quats" concentration
solution.
Mid Range Version
(QT-40) of Quaternary Ammonium Test
Strips

AQA1505
Ammonium Test Kit
Mid Range 0-500 ppm
5 rolls in 5
dispensers
$32.00

(List Price $34.00)

AQA 1506 Refill for Ammonium Test Kit
Mid Range 0-500 ppm
5
rolls in plastic box with color chart
$18.00

(List Price 24.00)
Some of our customers find this
mid range QT-40 test
to be best for their applications. QT-40's are used when there
is a need to measure somewhat higher than the normal range.