I can only see in the code the requirement as described in section 7.20, that only requires the weld be brushed after welding, it does not required the weld to be passivized, which is the best method to restore the oxide film.
So my question is this, Is the only code requirement (when using AWS D1.6) to brush the weld only? So passivization requirements would need to be outlined in the contract documents, drawings or standards?