STB 17.13.05-42-2015 Еnvironmental pгоtесtion. Analitical (laboratory) control and monitoring of the environment. Water quality. Determination of sulfat-ions concentration by turbidimetric metod
2015STB 17.13.05-42-2015 Еnvironmental pгоtесtion. Analitical (laboratory) control and monitoring of the environment. Water quality. Determination of sulfat-ions concentration by turbidimetric metod