DIN 38405-26-1989 德國檢驗水、廢水和污泥的標準方法.陰離子(D組).第26部分:采用光譜測定法對溶解硫化物的測定(D 26)
German standard methods for the examination of water, waste water and sludge; anions (group D); determination of dissolved sulfide by spectrometry (D 26)
The standard describes a chemical method for the determination of dissolved sulfide in water. The sulfide is to convert into a solution by blowing out with nitrogen, to oxidize by following chemical treatment to methylene blue and to measure the extinction photometric at 665 nm.#,,#