标准摘要
[中文适用范围]： ISO 12782 的本部分规定了用连二亚硫酸盐萃取法测定土壤和其他材料中结晶氧化铁和氢氧化铁形式的“活性”铁的含量。其他材料还包括废物。 “活性”铁的含量可作为地球化学模型的输入，以表示结晶氧化铁（氢）氧化物的含量。 注：虽然草酸铵/草酸萃取法（ISO 12782-3）通常用于估算氧化铁和氢氧化铁形式的“活性”铁，但 ISO 12782 的本部分与 ISO 12782-1 结合使用，已被证明分别对结晶和非晶态氧化铁（氢）氧化物的提取更为具体[7]。 [外文原描述]： ISO 12782-2:2012 specifies the determination of the content of "reactive" iron in the form of crystralline iron oxides and hydroxides in soil and other materials by extraction with dithionite. Other materials also include waste. The content of "reactive" iron can be used as input in geochemical models to represent the content of crystalline iron (hydr)oxides.
英文名称Soil quality — Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials — Part 2: Extraction of crystalline iron oxides and hydroxides with dithionite