STB 17.13.05-31-2014
環境保護和自然利用 分析控制和監測 水質 二甲基對苯二胺光度法測定硫化物和硫化氫的濃度
Environmental protection and nature use. Analytical control and monitoring. Water quality. Determination of the concentration of sulpfides and hydrogen sulpfide by photometric method with dimethyl-p-phenylendiamine