The acid test kit is the fastest and easiest way of checking for acid in the refrigeration compressor oil. The QwikCheck? indicator paper will change from golden yellow to pink or red when being exposed to as little as 1 part per million (PPM) of acid. It is ideal for preventative maintenance checks or for verifying proper acid clean-up after a compressor burn-out / change-out. The product replaces previous test kits.
