91. Tracked Changes. Air filters for general ventilation. Measurement of fractional efficiency and air flow resistance Part 2, (25th January 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (168 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
92. Tracked Changes. Diesel fuel and petrol filters for internal combustion engines. Filtration efficiency using particle counting and contaminant retention capacity. (17th February 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (96 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
93. Tracked Changes. Hydraulic fluid power. Filters. Multi-pass method for evaluating filtration performance of a filter element. (1st November 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (124 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
94. Tracked Changes. Influence of materials on water intended for human consumption. Influence due to migration. Test method for water treatment membranes Part 4, (2nd June 2023) 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) ↗
95. Tracked Changes. Rubber latex, synthetic. Determination of mechanical stability. High-speed method Part 1, (29th August 2022) 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) ↗
96. Tracked Changes. Wastewater treatment plants. Physical (mechanical) filtration Part 16, (6th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (56 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
97. Wastewater treatment plants. Physical (mechanical) filtration Part 16, (3rd August 2021) 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) ↗
98. Water quality. Detection and enumeration of Pseudomonas aeruginosa. Most probable number method Part 2, (3rd February 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (132 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
99. Water quality. Determination of suspended solids. Method by filtration through glass fibre filters. (15th September 1996) 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) ↗
100. Water quality. Microbiological methods. Detection and enumeration of faecal streptococci by the membrane filtration technique Part 4.4, (31st October 1989) 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) ↗