71. Photography. Processing chemicals. Specifications for anhydrous sodium metabisulfite. (15th March 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
72. Plant biostimulants. Determination of the pH for liquid microbial plant biostimulants/pH in microbial products. Determination of pH. (4th July 2022) 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) ↗
73. Preservative textile treatments. Specification for treatments Part 1, (15th June 1992) 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) ↗
74. Punched cards. Unpunched paper cards Part 1, (23rd November 1970) 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) ↗
75. Reagents for chemical analysis. Specifications (first series) Part 2, (31st August 1984) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (66 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
76. Recommendations and classification for top soil. (1st May 1979) 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) ↗
77. Recommendations for treatment of water for land boilers. (28th February 1978) 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) ↗
78. Recommendations for treatment of water for steam boilers and water heaters. (15th February 1997) 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) ↗
79. Safety, protective and occupational footwear for professional use. Requirements and test methods Part 1, (15th January 1993) 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) ↗
80. Soil quality. Inhibition of reproduction of Collembola (Folsomia candida) by soil contaminants. (17th August 2023) 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) ↗