DIN 38409-28
DIN 38409-28 标准详情
- 标准号：DIN 38409-28
- 中文标题：
- 英文标题：German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of bound nitrogen after reduction with Devarda's alloy and catalytic digestion (H 28)
- 标准类别：德国标准DIN
- 发布日期：
内容简介
Determines nitrogen present in water in the form of organic nitrogen compounds, nitrate, nitrite and ammonia, in concentrations by mass ranging from 10 1) to 200 mg/l. For lower concentrations, the sample pre-treatment and distillation procedure may
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