BS 7755-3.3-1995 土质.化学方法.使用氯化钡溶液对有效阳离子交换能量和基本饱和级的测定

标准号：BS 7755-3.3-1995
中文标准名称：土质.化学方法.使用氯化钡溶液对有效阳离子交换能量和基本饱和级的测定
英文标准名称：Soil quality. Chemical methods. Determination of effective cation exchange capacity and base saturation level using barium chloride solution
标准类型：Z18
发布日期：1995/2/15 12:00:00
实施日期：1995/2/15 12:00:00
中国标准分类号：Z18
国际标准分类号：13.080.10
适用范围：This International Standard specifies a method for the determination of the cation exchange capacity (CEC) at the pH of the soil and of the determination of the content of exchangeable sodium, potassium, calcium and magnesium in soil. This International Standard is applicable to all types of air-dried soil samples; pretreatment according to ISO 11464 is recommended. NOTES 1 The method described suffers from interference from calcium as calcite or gypsum in the sample. Also, the pres-ence of any soluble salts gives values for the exchangeable cations that are higher than the actual exchangeable