Standard

NS-EN ISO 11905-1:1998

Nov 1998 Published

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Abstract

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.

Document information

Standard from SN
Published: 11 November 1998
Edition: 1
Version: 1
Document type: NAT
ISBN:

ICS 13.060.01
ICS 13.060.50
National Committee SN/K 153

Product Relations

Referred by: NS-EN 12566-3:2005+A1:2009
Replaces: NS 4743:1993
Adopted from: EN ISO 11905-1:1998 , 0

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NS 4743:1993
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NS-EN ISO 11905-1:1998

NS-EN ISO 11905-1:1998

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