We are building a clad pressure vessel and the customer wants us to do a copper sulfate test where the clad surface has been removed for weld prep to check for clean base metal. Does anyone have a procedure or information on the procees to do this.
Thanks for the reply. This is exactly what I thought but what I want to know is what strength to mix the copper sulfate. I found it in 50 lb bags and was told to mix it with distilled water but I do not know the strength. If I mix it too strong will the residue do damage. I have also read that for some applications there is sufuric acid in the mix as well?