41. Methods of test for paints. Optical tests on paint films. Determination of colour and colour difference: measurement Part D9, (31st October 1986) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
42. Miscellaneous road traffic signs and devices - Requirements and test methods. (23rd February 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (44 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
43. Ophthalmic instruments. Indirect ophthalmoscopes. (15th July 1998) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
44. Ophthalmic instruments. Slit-lamp microscopes. (15th October 1998) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
45. Photographic density measurements. Guide for terms, symbols and notations Part 1, (28th June 1985) 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) ↗
46. Photographic density measurements. Specification for geometric conditions for reflection density Part 4, (28th June 1985) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
47. Photographic density measurements. Specification for geometric conditions for transmission density Part 2, (15th January 1993) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
48. Photographic density measurements. Specification for geometric conditions for transmission density Part 2, (29th August 1986) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
49. Photographic flash equipment. Method for determination of flash guide numbers Part 6, (31st March 1980) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (4 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
50. Photographic flash equipment. Methods for determination of the light output of electronic flash equipment Part 7, (31st March 1980) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (7 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗