Peracetic acid formulations usually contain acetic acid and hydrogen peroxide to stabilize the peracetic acid. The Precision Laboratories PAA test strips have been developed to determine the peracetic acid level in the presence of acetic acid and hydrogen peroxide.
The standards we use to evaluate the strip performance are prepared from an commercially available concentrates that is about 15-18% peracetic acid. The actual peracetic acid content of the standards is verified using a drop count test kit.