311. Tracked Changes. Hot-rolled twin-roll cast steel sheet of structural quality and high strength steel. (6th May 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (38 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
312. Tracked Changes. Industrial tyres and rims. Rims Part 3, (14th December 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (40 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
313. Tracked Changes. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. General astigmatic beams Part 2, (21st October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (60 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
314. Tracked Changes. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. Stigmatic and simple astigmatic beams Part 1, (21st October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (62 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
315. Tracked Changes. Plastic films for electrical purposes. Specifications for individual materials. Sheet 1. Biaxially oriented polypropylene (PP) film for capacitors Part 3-1, (17th December 2021) 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) ↗
316. Tracked Changes. Plastic films for electrical purposes. Specifications for individual materials. Sheets 4: Polyimide films used for electrical insulation Part 3-4, (7th March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (70 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
317. Tracked Changes. Plastics. Determination of tensile properties. Test conditions for unidirectional fibre-reinforced plastic composites Part 5, (6th June 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (58 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
318. Tracked Changes. Plastics. Extruded sheets of polypropylene (PP). Requirements and test methods. (5th October 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) ↗
319. Tracked Changes. Plastics. Poly(methyl methacrylate) double- and triple-skin sheets. Test methods. (6th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (70 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
320. Tracked Changes. Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water. Unsintered PTFE tapes and PTFE strings Part 3, (15th August 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (58 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗