出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：In this paper, the calculation formula of the classical monitoring method of COD (CODCr) is deducted and analyzed in detail by analyzing the calculation formula of the method for the classical monitoring of CODCr, and the difficult points of the CODCr, calculation formula is discussed, and the general doubts about the existence of this formula are solved in the environment monitoring industry. Keywords: chemical oxygen demand; Formula of calculation; Parsing; misgivings
关键词：chemical oxygen demand; Formula of calculation; Parsing; misgivings
