SNV DIN EN 25813:1993现行

Describes an iodometric method for the determination of dissolved oxygen in water by the so called "Winkler procedure" modified in order to make allowance for certain interferences. It is applicable to all types of water having dissolved oxygen concentrations greater than 0,2 mg/l up to double saturation of oxygen (approximately 20 mg/l), which are free from interfering substances.

ISO 5813:1983 - Identical

DIN EN 25813 (1993-01) - Identical

DIN EN 25813 : 1993 - Identical

ISO 5813 : 1983(R2017) - Identical