Controlled generation of peracetic acid atmospheres for the evaluation of chemical samplers

A system for controlled generation of peracetic acid (PAA) atmospheres used to test and evaluate sampling and measurement devices was developed and characterized. Stable atmospheric conditions were maintained in a dynamic flow system for hours while multiple sensors were simultaneously exposed to equivalent atmospheres of PAA vapors. Atmospheres characterized by a range of PAA concentrations at a controlled flow rate, temperature, and humidity were generated. Presented herein is a system for vaporization of PAA solutions to generate controlled atmospheres with less than 3% relative standard deviation (RSD) of the PAA concentrations over time.

Automated summary

The system developed can generate stable atmospheres with various PAA concentrations, maintaining controlled flow rate, temperature, and humidity, resulting in less than 3% relative standard deviation of PAA concentrations over time.