DIN EN ISO 12782-1:2012 土质. 土壤和材料成分的浸出和物种形成的地球化学模型参数. 第1部分:带抗坏血酸的无定形氧化铁和氢氧化铁的萃取 (ISO 12782-1-2012); 德文版本EN 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 (ISO 12782-1:2012); German version EN ISO 12782-1:2012