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Peracetic Acid Test Kits

Visual Kit

Range MDL Method Type Kit Cat. No. Refill Cat. No.
0.0 - 1.0 & 0 - 5 ppm 0.05 ppm DPD CHEMets K-7904 R-7904

Instrumental Kits

Range Method Type Kit Cat. No.
0 - 5.00 ppm DPD Vacu-vials K-7913
0 - 5.00 ppm DPD SAM Photometer + Vacu-vials I-2020

The CHEMetrics test kits for the determination of Peracetic Acid, a.k.a. Peroxyacetic Acid (PAA), in aqueous solutions are based on patented Self-Filling Reagent Ampoule technology, and employ the DPD method, delivering sensitivity and accuracy within two minutes or less. Premixed. Premeasured. Precise. Each kit contains 30 tests. Suitable for food and beverage and pulp and paper manufacturing as well as wastewater applications.

The Peracetic Acid Vacu-vials test kit K-7913 can be used with a Hach DR900 Colorimeter in conjunction with the CHEMetrics DR900 Vacu-vials® Adapter, Cat. No. A-0215. No endorsement by Hach Company is implied or intended.

The DPD Method

In the Peracetic Acid DPD test method, the sample is treated with an excess of potassium iodide. Peracetic acid oxidises the iodide to iodine. The iodine then oxidises DPD (N, N-diethyl-p-phenylenediamine) to form a pink-coloured species that is directly propoptional to the peracetic acid concentration in the sample. Results are expressed as ppm (mg/l) peracetic acid.

Various oxidising agents such as halogens, ozone, and cupric ions will produce high test results. Hydrogen peroxide does not interfere if present at levels comparable to the peracetic acid levels.

CHEMetrics Research and Development Director Joanne Carpenter was part of the Standard Methods Joint Task Group that established a new standard method for the analysis of PAA based on the well-established N-N-diethyl–p-phenylenediamine (DPD) method, published in Standard Methods for the Examination of Water and Wastewater, Method 4500-PAA in 2019. All the CHEMetrics PAA test kits are based on this standard method. Click here for more information.

APHA Standard Methods Online, Method 4500-PAA-2019.

Technical Data Sheet


Because it is a strong disinfectant, peracetic acid is an excellent sanitising agent for the food and beverage industry. Peracetic acid is used to disinfect equipment including pasteurisers, tanks, pipelines, evaporators, fillers and chillers and other contact surfaces in food processing plants. The pulp and paper industry uses peracetic acid as a delignification and bleaching agent. Peracetic Acid is also coming into use as a biocide in wastewater applications.

Standard Solution

CHEMetrics® offers a standard solution for peracetic acid (PAA), catalogue no. A-7925, for the preparation of 1.0 ppm standard, offers the analyst an easy and convenient method to confirm the accuracy and reliability of PAA measurements.