41. BS ISO 13756. Jewellery and precious metals. Determination of silver in silver alloys. Potentiometry using sodium chloride or potassium chloride. (22nd March 2023) 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) ↗
42. BS ISO 13885-1. Gel permeation chromatography (GPC). Part 1. Tetrahydrofuran (THF) as eluent (28th August 2019) 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) ↗
43. BS ISO 17862. Surface chemical analysis. Secondary ion mass spectrometry. Linearity of intensity scale in single ion counting time-of-flight mass analysers. (13th April 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (33 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
44. BS ISO 22640. Rubber. Framework for physical and chemical characterization of tyre and road wear particles (TRWP). (29th June 2022) 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) ↗
45. BS ISO 4925. Road vehicles. Specification of non-petroleum-base brake fluids for hydraulic systems. (20th December 2019) 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) ↗
46. BS ISO 4926. Road vehicles. Hydraulic braking systems. Non-petroleum-base reference fluid. (20th December 2019) 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. BS ISO 5667-26. Water quality. Sampling. Part 26. Guidance on sampling for the parameters of the oceanic carbon dioxide system (30th March 2021) 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) ↗
48. BS ISO 6142-1 AMD1. Gas analysis. Preparation of calibration gas mixtures. Part 1. Gravimetric method for Class I mixtures (14th July 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (9 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
49. BS ISO 6980-1. Nuclear energy. Reference beta-particle radiation. Part 1. Methods of production (7th March 2022) 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) ↗
50. BS ISO 9277. Determination of the specific surface area of solids by gas adsorption. BET method. (27th May 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (25 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗