标准摘要
[中文适用范围]: 本国际标准规定了 —— 正磷酸盐的测定方法(见第 4 章); ——溶剂萃取后的正磷酸盐(见第5条); ——可水解磷酸盐加正磷酸盐(见第6条); ——分解后的总磷(见第 7 条和第 8 条)。 该方法适用于包括海水和废水在内的各种水。 无需稀释即可在此类样品中测定 0.005 mg/l 至 0.8 mg/l 范围内的磷浓度。 溶剂萃取程序可以测定较小的磷浓度,检测限约为 0,000 5 mg/l。 [外文原描述]: ISO 6878:2004 specifies methods for the determination of orthophosphate, orthophosphate after solvent extraction, hydrolysable phosphate plus orthophosphate, and total phosphorus after decomposition. The methods are applicable to all kinds of water including seawater and effluents. Phosphorus concentrations within the range of 0,005 mg/l to 0,8 mg/l may be determined in such samples without dilution. A solvent extraction procedure allows smaller phosphorus concentrations to be determined with a detection limit of about 0,000 5 mg/l.
英文名称Water quality — Determination of phosphorus — Ammonium molybdate spectrometric method