1. Methods for ultrasonic detection of imperfections in steel forgings. (28th February 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Schedule for compressibility factors for petroleum hydrocarbons in the density range 638 kg/m3 to 1074 kg/m3 . (28th February 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Specification for density hydrometers. (31st May 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Specification for preformed cellular polyethylene (PE) materials for the thermal insulation of pipework. (31st October 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗