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sklademVydáno: 2012-06-30
BS EN ISO 12782-1:2012
Soil quality. Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials Extraction of amorphous iron oxides and hydroxides with ascorbic acid
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| Označení normy: | BS EN ISO 12782-1:2012 |
| Počet stran: | 22 |
| Vydáno: | 2012-06-30 |
| ISBN: | 978 0 580 66911 8 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 12782-1:2012
This standard BS EN ISO 12782-1:2012 Soil quality. Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials is classified in these ICS categories:
- 13.080.05 Examination of soils in general
This part of ISO 12782 specifies the determination of the content of “reactive” iron in the form of amorphous iron oxides and hydroxides in soil and other materials by extraction with ascorbic acid. Other materials also include waste. The content of “reactive” iron can be used as input in geochemical models to represent the content of amorphous iron (hydr)oxides.
NOTE Although the ammonium oxalate/oxalic acid extraction (ISO 12782-3) is commonly used to estimate “reactive” iron in the form of iron oxides and hydroxides, this part of ISO 12782, in conjunction with ISO 12782-2, has been shown to be more specific for the extraction of amorphous and crystalline iron (hydr)oxides, respectively.