Procedure given is applicable to the direct analysis of potable and raw water, but is particularly intended for polluted waters and saline waters. The range covers a nitrat nitrogen concentration up to 45 mg/l using a 5 ml test portion, and a cell of path length 10 mm. A concentration of 0,22 mg/l can be detected. Potential interferences from nitrite and chloride are removed, certain substances may distil over and colour the distillate.
Status: WithdrawnPublication date: 1986-01
Edition: 1Number of pages: 4
Technical Committee: ISO/TC 147/SC 2 Physical, chemical and biochemical methods
- ICS :
- 13.060.50 Examination of water for chemical substances
ISO 7890-2:1986Stage: 95.99
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