DS DS/EN ISO 20079
DS DSEN SO 20079 2006-OCT-16 Water qualty - Determnaton of the toxc effect of water consttuents and waste water on duckweed Lemna mnor - Duckweed growth nhbton test
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This International Standard specifies a method for the determination of the growth inhibiting response of substances and mixtures contained in water, treated municipal waste water and industrial effluents.