BS 7755-3.6-1995 土壤质量.化学方法.磷的测定.在碳酸氢钠溶液中可溶磷的光谱测定

标准号：BS 7755-3.6-1995
中文标准名称：土壤质量.化学方法.磷的测定.在碳酸氢钠溶液中可溶磷的光谱测定
英文标准名称：Soil quality. Chemical methods. Determination of phosphorus. Spectrometric determination of phosphorus soluble in sodium hydrogen carbonate solution
标准类型：Z18;B11
发布日期：1995/4/15 12:00:00
实施日期：1995/4/15 12:00:00
中国标准分类号：Z18;B11
国际标准分类号：13.080.10
适用范围：This International Standard specifies an extraction method and analytical conditions to determine the content of soil phosphorus soluble in sodium hydro-gen carbonate solution. After the extraction step, two different methods of colour development are poss-ible. Subclause 4.2 specifies colour development at room temperature. Subclause 4.3 specifies colour development after heating to a high temperature. This International Standard is applicable to all types of soils.