These quat test strips measure residual QAC levels from 10-100ppm in liquids or on the surfaces of utensils; only $15.00 Pack/100.
Note: the directions on the bottle are for testing a liquid. See below for testing residue on a surface.
Read more in our blog on what 10ppm really means & whether it is really the same as zero.
Click on the Specifications Tabs below for additional technical information.