1. BS 5911-1:2021. Concrete pipes and ancillary concrete. Part 1: Specification for unreinforced and reinforced concrete pipes (including jacking pipes) and fittings with flexible joints (complementary to BS EN 1916:2002) (1st March 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (31 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗