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2008-11-24

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2008-08-07

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2023-12-29

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2003-01-01

WATER QUALITY. DETERMINATION OF THE CHEMICAL OXYGEN DEMAND (COD). DICHROMATE METHOD.
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2002-05-29

Water quality. Physical, chemical and biochemical methods-Method for the determination of the chemical oxygen demand
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1988-10-31

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2019-08-30

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Water quality - Determination of biochemical oxygen demand after n days (BOD<(Index)n>) - Part 2: Method for undiluted samples (ISO 5815:1989, modified); German version EN 1899-2:1998
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1998-05-01