1. Specification for reflection-reducing coating of instrument windows and lighting wedges. (24th March 1971) 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. Glass for glazing. Classification Part 1, (15th July 1995) 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) ↗