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EVS-EN 16318:2013

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 04.04.2016
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EN 16318:2013
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
04.04.2016
Põhitekst + muudatus
14.11.2013
Põhitekst
03.05.2012
Põhitekst
CEN/TS 16318:2012
This European Standard specifies two methods for the determination of the content of soluble chromate in fertilizers.
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.
NOTE  In case of reducing or oxidizing fertilizer matrix, no valid Cr(VI) content can be reported.

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