What is BS 4677 - Arc welding of austenitic stainless steel pipework about?
BS 4677 is a British Standard that discusses arc welding.
BS 4677 specifies requirements for both shop and site arc welding, using manual, semi-automatic, automatic, and mechanized welding processes, or combinations of these joints in austenitic stainless steel pipework intended to carry fluids.
In addition to the definitive requirements, it also requires the items detailed in clause 2 to be documented. For compliance with BS 4677 , both the definitive requirements and the documented items have to be satisfied.