61. Petrographic analysis of bituminous coal and anthracite. Method of determining microscopically the reflectance of vitrinite Part 5, (15th April 1995) 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) ↗
62. 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) ↗
63. Photography. Density measurements. Geometric conditions for reflection density Part 4, (15th September 1995) 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) ↗
64. Photography. Determination of flash guide numbers. (15th August 1995) 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) ↗
65. Physical testing of rubber. Methods of test for staining in contact with organic materials Part A33, (31st December 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) ↗
66. Procedure for inspection and testing of textiles. (31st July 1984) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (37 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
67. Radio frequency and coaxial cable assemblies. General requirements and test methods Part 1, (15th December 1993) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (30 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
68. Recommendation for the determination of the ink absorbency of paper and board by use of K & N ink. (31st March 1970) 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) ↗
69. Road traffic noise reducing devices. Non-acoustic performance. General safety and environmental requirements Part 2, (20th May 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (30 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
70. Road traffic signs and internally illuminated bollards. Specification for retroreflective and non-retroreflective signs Part 6, (31st January 1983) 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) ↗