1. Method for determination of residue on ignition or ash of chemical products. (30th June 1970) 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) ↗
2. Methods for the analysis of nickel for use in electronic tubes and valves. Determination of sulphur (combustion method) Part 12, (13th March 1970) 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) ↗
3. Specification for acetic anhydride. (20th January 1970) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗