61. 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) ↗
62. 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) ↗
63. 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) ↗
64. BS ISO 2385. Packed cork. Virgin cork, raw reproduction cork, burnt cork, boiled reproduction cork and raw cork waste. Sampling to determine moisture content. (5th February 2020) 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) ↗
65. BS ISO 23964. Traditional Chinese Medicine. Saposhnikovia divaricata root and rhizome. (21st September 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
66. BS ISO 24196. Lignins. Determination of lignin content in kraft lignin, soda lignin, and hydrolysis lignin. (6th September 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) ↗
67. BS ISO 24215. Lignins. Determination of carbohydrate composition in kraft lignin, soda lignin and hydrolysis lignin. (24th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (23 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
68. BS ISO 28596. Sampling procedures for inspection by attributes. Two-stage sampling plans for auditing and for inspection under prior information. (13th April 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
69. BS ISO 3065. Essential oil of Eucalyptus, Australian type. (18th September 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
70. BS ISO 4405. Hydraulic fluid power. Fluid contamination. Determination of particulate contamination by the gravimetric method. (12th August 2021) 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) ↗