Most recent

ISO 11905-1:1997

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

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.

CONTENT PROVIDER
International Organization for Standardization [iso]

Others Also Bought
Water quality - Determination of nitrogen - Part 2: Determination of bound nitrogen, after combustion and oxidation ...
Water quality -- Determination of selected organic nitrogen and phosphorus compounds -- Gas chromatographic me ...
Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and ...
Included in Packages
This standard is not included in any packages.
Document History
We have no document history for this standard.
Amendments & Corrections
We have no amendments or corrections for this standard.