工业循环冷却水中硝酸盐的测定 磺基水杨酸分光光度法
Industrial circulating cooling water determination of nitrate- Spectrophotometric method using sulfosalicylic acid
2011-12-20
GB/T 14642-2009
工业循环冷却水及锅炉水中氟、氯、磷酸根、亚硝酸根、硝酸根和硫酸根的测定 离子色谱法
Industrial circulating cooling water and boiler water - Determination of fluoride，chloride，phosphate，nitrite，nitrate and sulfate - Ion chromatography