ISO 12782-1:2012 PDF

Scope: 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.

ISO 12782-1:2012 Referenced Document

EN 14899 Characterization of waste Sampling of waste materials Framework for the preparation and application of a Sampling Plan*， 2024-04-19 Update
EN 15002 Characterization of waste - Preparation of test portions from the laboratory sample*， 2015-04-01 Update
ISO 10381-1 Soil quality - Sampling - Part 1: Guidance on the design of sampling programmes
ISO 10381-2 Soil quality - Sampling - Part 2: Guidance on sampling techniques
ISO 10381-3 Soil quality - Sampling - Part 3: Guidance on safety
ISO 10381-4 Soil quality - Sampling - Part 4: Guidance on the procedure for investigation of natural, near-natural and cultivated sites
ISO 10381-5 Soil quality - Sampling - Part 5: Guidance on the procedure for the investigation of urban and industrial sites with regard to soil contamination
ISO 10381-6 Soil quality - Sampling - Part 6: Guidance on the collection, handling and storage of soil under aerobic conditions for the assessment of microbiological processes, biomass and diversity in the laboratory
ISO 11464 Soil quality - Pretreatment of samples for physico-chemical analysis
ISO 11465 Soil quality; determination of dry matter and water content on a mass basis; gravimetric method; technical corrigendum 1
ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 5667-3 Water quality*， 2024-02-01 Update

2012 ISO 12782-1:2012 Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 1: Extraction of amorphous iron oxides and hydroxides with ascorbic acid