641. Water quality. Biological methods. Determination of acute lethal toxicity to marine copepods (Copepoda, Crustacea) Part 5.24, (15th September 1999) 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) ↗
642. Water quality. Biological methods. Determination of the prolonged toxicity of substances to freshwater fish. Method for evaluating the effects of substances on the growth rate of rainbow trout [Oncorhynchus mykiss Walbaum (Teleostei, Salmonidae)] Part 5.17, (15th April 1995) 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) ↗
643. Water quality. Detection and enumeration of thermotolerant Campylobacter spp. (20th November 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
644. Water quality. Determination of biochemical oxygen demand after n days (BODn). Dilution and seeding method with allylthiourea addition Part 1, (15th December 1998) 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) ↗
645. Water quality. Determination of biochemical oxygen demand after n days (BODn). Method for undiluted samples Part 2, (15th December 1998) 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) ↗
646. Water quality. Determination of cadmium by atomic absorption spectrometry. (15th September 1995) 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) ↗
647. Water quality. Determination of chromium. Atomic absorption spectrometric methods. (15th January 1997) 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) ↗
648. Water quality. Determination of mercury. (15th October 1997) 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) ↗
649. Water quality. Gas chromatographic determination of some selected chlorophenols in water. (15th June 1999) 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) ↗
650. Water quality. Guide to analytical quality control for water analysis. (15th February 1999) 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) ↗