GSO ISO 12782-3:2013 土壤质量 土壤和材料中成分浸出和形态形成的地球化学模拟参数 第3部分：用草酸铵/草酸萃取氧化铝和氢氧化物
Soil quality -- Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials -- Part 3: Extraction of aluminium oxides and hydroxides with ammonium oxalate/oxalic acid
This part of ISO 12782 specifies the determination of the content of “reactive” aluminium in the form of amorphous aluminium oxides and hydroxides in soil and other materials by extraction with ammonium oxalate/oxalic acid. Other materials also include waste. The content of “reactive” aluminium can be used as input in geochemical models.