标准摘要
[中文适用范围]： ISO 14869 的这一部分规定了土壤中以下元素总含量的溶解方法：Na、K、Mg、Ca、Ti、Mn、Fe、Al、Si。 该列表并不详尽，其他元素也适用于测定，前提是 - 它们在聚变过程中不会丢失， - w > (3d·V/m) 其中 w 是元素的质量含量，以毫克每千克表示土壤，d 是所考虑的元素和分析方法的检测限，单位为毫克/升，3 是常规因子，V 是含有溶解样品的最终溶液的调整体积，单位为升，m 是质量测试部分的重量，以千克为单位，——所得溶液中的高盐浓度不会对测定产生不利影响。 该方法提出的通量适用于多种材料，其中土壤样品相对容易处理。 [外文原描述]： ISO 14869-2:2002 specifies a method for the dissolution of total contents for the following elements in soils: Na, K, Mg, Ca, Ti, Mn, Fe, Al, Si This list is not exhaustive, and other elements are applicable for determination provided: they are not lost during the fusion process, w > (3 d · V / m ). where w is the mass content of the element, expressed in milligrams per kilogram soil, d is the detection limit, in milligrams per litre, for the element and analytical method considered, 3 is a conventional factor, V is the adjusted volume, in litres, of the final solution containing the dissolved sample, and m is the mass of the test portion, in kilograms, the determination is not adversely affected by the high salt concentration in the resultant solution. The flux proposed in this method is suitable for a wide range of materials, among which soil samples are relatively easy to deal with.
英文名称Soil quality — Dissolution for the determination of total element content — Part 2: Dissolution by alkaline fusion