How to Order Flowserve Worcester is proud to announce the introduction. BSAMDSUPERSEDEDSee the following: BS-EN-ISO Show Complete Document History. of its new. This British Standard has been prepared under the direction of the PipingSystems Components Standards Committee and constitutes the first revision BS Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Piping Systems Components Standards BS Committees responsible for this British