標準號：DIN EN 13650-2002
中文標準名稱：土壤改良和生長介質.王水可溶元素萃取
英文標準名稱：Soil improvers and growing media - Extraction of aqua regia soluble elements; German version EN 13650:2001
標準類型：B11
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：B11
國際標準分類號：65.080
適用范圍：This European Standard specifies a method for the routine determination for aqua regia soluble elements as listed in Annex A and recommends suitable analytical methods for the determination of the extracted elements from soil improvers and growing media. Materials containing more than 34 % (m/m) organic matter will require treatment with additional nitric acid (see note 8.1, note 3) with high solute concentrations in extract solutions, spectral interference's and background enhancement should be expected.