DIN EN 1899-1-1998 水质.n天后(BODn)生化氧需求测定.第1部分:烯丙基硫脲添加剂稀释接种法
Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea acid addition (ISO 5815:1989, modified); German version EN 1899-1:1998
The document describes a method for the empirical and conventionel determination of the biochemical oxygen demand of water by dilution and seeding with suppression of nitrification. After preparing of the dilution water samples and control solution the oxygen concentration is determined. Afterwards the biochemical oxygen demand is computed after n days.