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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)

Jun 18, 2012

General information

99.60 Withdrawal effective   Oct 23, 2013

CEN

CEN/TC 260 Fertilizers and liming materials

Technical Specification

65.080   Fertilizers

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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.
NOTE In case of reducing or oxidising fertiliser matrix, no valid Cr(VI) content can be reported.

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CEN/TS 16318:2012
99.60 Withdrawal effective
Oct 23, 2013