51. BS ISO 12614-8. Road vehicles. Liquefied natural gas (LNG) fuel system components. Part 8. Excess flow valve (9th June 2020) 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) ↗
52. BS ISO 16245. Information and documentation. Boxes, file covers and other enclosures, made from cellulosic materials, for storage of paper and parchment documents. (14th April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
53. BS ISO 17871 AMD 1. Gas cylinders. Quick-release cylinder valves. Specification and type testing. (29th August 2023) 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) ↗
54. BS ISO 211. Essential oils. General rules for labelling and marking of containers. (10th May 2022) 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) ↗
55. BS ISO 21863. Water quality. Determination of alkylmercury compounds in water. Method using gas chromatography-mass spectrometry (GC-MS) after phenylation and solvent extraction. (5th February 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) ↗
56. BS ISO 23695. Water quality. Determination of ammonium nitrogen in water. Small-scale sealed tube method. (11th January 2021) 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) ↗
57. BS ISO 23696-1. Water quality. Determination of nitrate in water using small-scale sealed tubes. Part 1. Dimethylphenol based method (11th January 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (13 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
58. BS ISO 23696-2. Water quality. Determination of nitrate in water using small-scale sealed tubes. Part 2. Chromotropic acid based method (11th January 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (13 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
59. BS ISO 24021-1. Light gauge metal containers. Terminology and classification. Part 1. Open-top cans and ends (11th October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (27 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
60. BS ISO 24021-2. Light gauge metal containers. Vocabulary and classification. Part 2. General cans (26th June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗