21. Scenarios for interconnections between exchanges of private telecommunication networks. (28th June 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
22. Semiconductor devices. Mechanical and climatic test methods. Permanence of marking Part 9, (27th November 2017) 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) ↗
23. Small craft. Permanently installed fuel systems and fixed fuel tanks. (15th August 2001) 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) ↗
24. Small craft. Permanently installed fuel systems. (21st March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (32 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
25. Small craft. Permanently installed petrol and diesel fuel tanks. (20th March 2023) 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) ↗
26. Specification for blue-black record inks. (31st January 1964) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (11 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
27. Specification for filling ratios and developed pressures for liquefiable and permanent gases. (28th May 1976) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (48 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
28. Specification for ladders for permanent access to chimneys, other high structures, silos and bins. (15th June 1992) 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) ↗
29. Specification for self-adhesive plastics labels for permanent use. General purpose labels Part 1, (31st December 1975) 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) ↗
30. Specification for self-adhesive plastics labels for permanent use. Requirements for stringent conditions Part 2, (31st October 1979) 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) ↗