Is there anay body knows where can I find standard for Freon (CFCs, HCFCs)? (R143, R134, R22,..)
Have you checked with Air Products or National Welders?
You are really part of the solution! :)
Both of websites were great! Thanks for your help.
By the way, I like your job ... Some time, it was my hobby, Determination of heavy metals, pesticides,..