ISO-14870 › Soil quality - Extraction of trace elements by buffered DTPA solution
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This International Standard specifies a method for the extraction of trace elements in soil samples using a buffered diethylenetriaminepentaacetic acid (DTPA) solution. This method mainly applies to the estimation of the availability of copper, iron, manganese and zinc to plants which grow in the soils. It is preferably applicable to soils having a pH greater than 6. Potentially toxic elements such as cadmium, chromium, nickel and lead can also be determined in the extracts. In soils containing large amounts of one or more of these elements, the efficiency of the extraction of any of these elements can be lessened by exceeding the complexation capacity of DTPA.
This International Standard does not specify the methods of measurement of the trace elements in the extracts.
To find similar documents by classification:
13.080.10 (Chemical characteristics of soils)
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Document Number
ISO 14870:2001
Revision Level
1ST EDITION
Status
Current
Publication Date
Dec. 1, 2001
Committee Number
ISO/TC 190/SC 3