NEN 6441
Water - Determination of total hardness and calcium and magnesium content
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 30 April 1979 |
| Status: | inactive |
| Page Count: | 6 |
| ICS Code (Examination of water for chemical substances): | 13.060.50 |
scope:
This standard describes a titrimetric method to determine the total hardness and the content of calcium and magnesium ions in water. It applies to any kind of water with a total hardness of at least 5 µ mol/l(<=^> 0.01mg/l), a calcium content of at least 1 mg/l and a magnesium content of at least 1 mg/l/ This method is usually not suitable for waste water.
Document History
NEN 6441
April 30, 1979
Water - Determination of total hardness and calcium and magnesium content
This standard describes a titrimetric method to determine the total hardness and the content of calcium and magnesium ions in water. It applies to any kind of water with a total hardness of at least...