GRoberts,
Any big difference if I carried out the corrosion test at +20 celcius and +25 celcius? Because I have received a raw material grd F51/2205, in the mill cert stated the supplier carried out G48 Mtehod A at +20 celcius/24hrs, weight loss is 0.266g/m2. But our specification is +25 celcius/24hrs, weight loss is 4g/m2. Is the supplier value can supercede our specification? Or I need to carry out another test at +25 celcius.