SIS SS 02 81 43 E-1979
水分析．测定生化耗氧量，生化需氧量，水．稀释方法

Vattenunders?kningar — Best?mning av biokemisk oxygenf?rbrukning, BOD, hos vatten — Utsp?dningsmetod

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标准号

SIS SS 02 81 43 E-1979

发布

1979年

发布单位

SE-SIS

 

 

适用范围

This standard is applicable to the determination of biochemical oxygen demand, BOD, of all types of water and dilutions thereof containing no substances interfering with the degradation of organic matter. The method covers a wide range of concentrations of oxygen consuming material. The lower determination limit is a BOD value of 2 mg/1 for an undiluted sample. Special tests are required to check the presence of interfering substances, see 10.2. Interferences from chlorine, sulphur dioxide, hydrogen sulphide and other volatile sulphides can be eliminated as instructed in 10.3 — 10.5. The interference from immediate oxygen demand (IDOD)? is diminished by waiting 15 min between the dilution and the oxygen determination. This standard is in principle based on the methods and reports given under References.

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