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| BS 6068-4.12:1998* ISO 11731:1998 | Water quality. Microbiological methods. Detection and enumeration of Legionella |
| BS 6068-4.2:1989* ISO 8199:1988 | Water quality. Microbiological methods. Guide to the enumeration of micro-organism by culture |
| BS 6068-4.4:1989 | Water quality. Microbiological methods. Detection and enumeration of faecal streptococci by the membrane filtration technique |
| BS 6068:Part 4:Section 4.3:1989 | Water quality. Microbiological methods. Detection and enumeration (most probable number) of faecal streptococci by the multiple tube technique |
| BS 6068:Part 4:Section 4.5:1989* ISO 6222:1988 | Water quality. Microbiological methods. Method for the enumeration of viable micro-organisms: colony count by inoculation in or on a nutrient agar culture medium |
| BS 6068:Part 4:Section 4.6:1989* ISO 8360-1:1988 | Water quality. Microbiological methods. Detection and enumeration of Pseudomonas aeruginosa by enrichment in liquid medium |
| BS 6068:Part 4:Section 4.7:1989* ISO 8360-2:1988 | Water quality. Microbiological methods. Detection and enumeration of Pseudomonas aeruginosa by membrane filtration |
| BS 6920-2.4:1996 | Suitability of non-metallic products for use in contact with water intended for human consumption with regard to their effect on the quality of water. Methods of test. Growth of aquatic micro-organisms test |
| BS 6920-2.4:2000 | Suitability of non-metallic products for use in contact with water intended for human consumption with regard to their effect on the quality of water. Methods of test. Growth of aquatic micro-organisms test |
| BS 7592:1992 | Methods for sampling for Legionella organisms in water and related materials |
| BS 8496:2007 | Water quality. Enumeration of micro-organisms in water samples. Guidance on the estimation of variation of results with particular reference to the contribution of uncertainty of measurement |
| BS EN 12780:2002* BS 6068-4.15:2002 | Water quality. Detection and enumeration of Pseudomonas aeruginosa by membrane filtration |
| BS EN 14486:2005* BS 6068-4.20:2005 | Water quality. Detection of human enteroviruses by monolayer plaque assay |
| BS EN 26461-1:1993* BS 6068-4.8:1993* ISO 6461-1:1986 | Water quality. Detection and enumeration of the spores of sulfite-reducing anaerobes (Clostridia). Method by enrichment in a liquid medium |
| BS EN 26461-2:1993* BS 6068-4.9:1993* ISO 6461-2:1986 | Water quality. Detection and enumeration of the spores of sulfite-reducing anaerobes (Clostridia). Method by membrane filtration |
| BS EN ISO 10705-1:2001* BS 6068-4.11:1996 | Water quality. Detection and enumeration of bacteriophages. Detection and enumeration of bacteriophages. Enumeration of F-specific RNA bacteriophages |
| BS EN ISO 10705-2:2001* BS 6068-4.13:2000 | Water quality. Detection and enumeration of bacteriophages. Enumeration of somatic coliphages |
| BS EN ISO 17994:2004* BS 6068-4.19:2004 | Water quality. Criteria for establishing equivalence between microbiological methods |
| BS EN ISO 6222:1999* BS 6068-4.5:1999 | Water quality. Enumeration of culturable micro-organisms. Colony count by inoculation in a nutrient agar culture medium |
| BS EN ISO 7899-1:1999* BS 6068-4.3:1999 | Water quality. Detection and enumeration of intestinal enterococci in surface and waste water. Miniaturized method (Most probable number) for surface and waste water |
| BS EN ISO 7899-2:2000* BS 6068-4.4:2000 | Water quality. Detection and enumeration of intestinal enterococci in surface and waste water. Membrane filtration method |
| BS EN ISO 8199:2007 | Water quality. General guidance on the enumeration of micro-organisms by culture |
| BS EN ISO 9308-1:2000* BS 6068-4-14:2000 | Water quality. Detection and enumeration of Escherichia Coli and coliform bacteria in surface and waste water. Membrane filtration method |
| BS EN ISO 9308-3:1999* BS 6068-4.10:1999 | Water quality. Detection and enumeration of Escherichia Coli and coliform bacteria in surface and waste water. Miniaturized method (most probable number) for the detection and enumeration of E. coli in surface and waste water |
| BS EN ISO 9408:1999* BS 6068-5.11:1999 | Water quality. Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium by determination of oxygen demand in a closed respirometer |
| BS ISO 10705-3:2003* BS 6068-4.16:2003 | Water quality. Detection and enumeration of bacteriophages. Validation of methods for concentration of bacteriophages from water |
| BS ISO 10705-4:2001* BS 6068-4.17:2001 | Water quality. Detection and enumeration of bacteriophages. Enumeration of bacteriophages infecting Bacteriodes fragilis |
| BS ISO 11731-2:2004* BS 6068-4.18:2004 | Water quality. Detection and enumeration of Legionella. Direct membrane filtration method for waters with low bacterial counts |
| BS ISO 15553:2006 | Water quality. Isolation and identification of Cryptosporidium oocysts and Giardia cysts from water |
| DD 211:1992 | Method for detection and enumeration of Legionella organisms in water and related materials |
| DD 260:2003 | Water quality. Enumeration of micro-organisms in water samples. Guidance on the estimation of variation of results with particular reference to the contribution of uncertainty of measurement |
| DD ENV ISO/TR 13843:2001 | Water quality. Guidance on validation of microbiological methods |
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