1. Specification for industrial plugs, socket-outlets and couplers for a.c. and d.c. supplies. (30th September 1968) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (144 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for perchloroethylene (tetrachloroethylene). (14th March 1968) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗