土壤质量 水溶性硫酸盐和酸溶性硫酸盐的测定

[中文适用范围]： 规定了风干土壤和类土壤材料的水和酸提取物的制备程序。 这些提取物的硫酸盐含量通过重量分析法测定，其中将氯化钡添加到水或酸提取物中，并将硫酸钡沉淀干燥并称重。 然后根据分析中使用的材料的质量和沉淀的硫酸钡的质量计算硫酸盐含量。 适用于各类风干土壤。 [外文原描述]： Specifies procedures for the preparation of water and acid extracts of air-dried soils and soil-like materials. The sulfate content of these extracts is determined by a gravimetric method in which barium chloride is added to the water or acid extract and the precipitate of barium sulfate is dried and weighed. The sulfate content is then calculated from the mass of the material used in the analysis and the mass of barium sulfate precipitated. Applicable to all types of air-dried soils.