1. BS ISO 14368-4. Mineral and sapphire watch-glasses. Part 4. Anti-reflective treatment (10th September 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Mineral and sapphire watch-glasses. Anti-reflective treatment Part 4, (24th August 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗