GSO ISO 11905-1:2013
水质氮测定 第1部分：使用过氧化硫氧化消解器的方法

Water quality -- Determination of nitrogen -- Part 1: Method using oxidative digestion with peroxodisulfate

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标准号

GSO ISO 11905-1:2013

发布

2013年

发布单位

GSO

当前最新

GSO ISO 11905-1:2013

 

 

适用范围

This part of ISO 11905 specifies a method for the determination of nitrogen present in water, in the form of free ammonia, ammonium, nitrite, nitrate and organic nitrogen compounds capable of conversion to nitrate under the oxidative conditions described. Dissolved nitrogen gas is not determined by this method. This method is applicable to the analysis of natural fresh water, sea water, drinking water, surface water and treated sewage effluent. It is also applicable to the analysis of sewage and trade wastes in which the amount of organic matter in the test portion can be kept below 40 mg/l, expressed as carbon (C), when measured by Total Organic Carbon (TOC), or 120 mg/l, expressed as oxygen (O2), when measured by Chemical Oxygen Demand (COD) according to the respective International Standards.

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