PD 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)

Published:

31 May 2012

•

Withdrawn:

31 Oct 2013

1 Scope

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.

Product Details

Descriptors

Testing conditions

Chromium trioxide

Soil improvement

Reproducibility

Precision

Chemical analysis and testing

Determination of content

Fertilizers

Agricultural chemicals

ICS Codes

65.080 Fertilizers

Committee

CII/37

International relationships

Identical to:

CEN/TS 16318:2012

ISBN

978 0 580 75977 2

Publisher

BSI