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Water quality - Part 4- Microbiological methods - Section 4.12- Detection and enumeration of Legionella. Original standard BS 6068-4.12-1998 (2009) ISO 11731-1998 in PDF full version. Additional info + preview on request

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Water quality - Part 5- Biological methods - Section 5.17 Determination of the prolonged toxicity of substances to freshwater fish - Method for evaluating the effects of substances on the growth rate of rainbow trout. Original standard BS 6068-5.17-1995 (1999) ISO 10229-1994 in PDF full version. Additional info + preview on request

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Water quality - Part 5- Biological methods - Section 5.25- Determination of the inhibitory effect of water constituents on the growth of activated sludge microorganisms. Original standard BS 6068-5.25-1999 (2000) ISO 15522-1999 in PDF full version. Additional info + preview on request

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Water quality - Part 6- Sampling - Section 6.10 Guidance on sampling of waste waters. Original standard BS 6068-6.10-1993 (1999) ISO 5667-10-1992 in PDF full version. Additional info + preview on request

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Water quality - Part 6- Sampling - Section 6.5 Guidance on sampling of drinking water and water used for food and beverage processing. Original standard BS 6068-6.5-1991 (1999) ISO 5667-5-1991 in PDF full version. Additional info + preview on request

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Water quality - Part 6- Sampling - Section 6.7 Guidance on sampling of water and steam in boiler plants. Original standard BS 6068-6.7-1994 (1999) ISO 5667-7-1993 in PDF full version. Additional info + preview on request

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