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CEN/TS 16318:2012

Fertilizers - Determination of trace elements - Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)

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Kehtetu alates 14.11.2013
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CEN/TS 16318:2012
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14.11.2013
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03.05.2012
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CEN/TS 16318:2012
This Technical Specification specifies two methods for the determination of the content of soluble chromate in fertilisers. Method A specifies the determination of chromate after extraction with water by photometry. This method can be used to determine Cr(VI)-mass fractions in solids higher than 1 mg/kg. Method B specifies the determination of chromate by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.

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EVS-EN 13650:2002

Soil improvers and growing media - Extraction of aqua regia soluble elements
Uusim versioon Kehtiv alates 04.04.2002