Peracetic Acid Rinse - Help Requested for how to test

We have a peracetic acid rinse for our CoP equipment and we need a test method to demonstrate that we have removed all of the peracetic acid from the surface of the equipment. Can someone please provide their experience using peracetic acid?

I’m looking for a test method that can be validated readily like a titration or conductivity meter? I think that we would end up testing acetic acid and not the peracetic acid. All I’ve been seeing are test strip methods. Also, our limits for the residue is < 3 ppm. Thanks in advance for any help!!