11. Specification for apparatus for measurement of packed red cell volume. (17th April 1968) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
12. Specification for measurement microphones. Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique Part 2, (15th April 1994) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗