I need to find the test that will cover me to purchase R-22. Our company is looking for on on-line test. Our currant HVAC company stated to go to epa wed site, But unable to find that test. The tech stated its free. I haven't seen him for a few weeks. As we have repair several of our own units. I have all the equipment and just looking for a little help. With out starting a new job for a hvac company.