UNI EN 1189 : 1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
WATER QUALITY - DETERMINATION OF PHOSPHORUS - AMMONIUM MOLYBDATE SPECTROMETRIC METHOD
01-10-2004
12-01-2013
Foreword
Introduction
1 Scope
2 Principle
3 Determination of orthophosphate
3.1 Reagents
3.2 Apparatus
3.3 Sampling and samples
3.4 Procedure
3.5 Expression of results
3.6 Test report
4 Determination of orthophosphate after solvent extraction
4.1 Reagents
4.2 Sampling and samples
4.3 Procedure
4.4 Expression of results
4.5 Test report
5 Determination of hydrolysable phosphate and
orthophosphate
5.1 Reagents
5.2 Apparatus
5.3 Sampling and samples
5.4 Procedure
5.5 Expression of results
5.6 Test report
6 Determination of total phosphorus after peroxodisulfate
oxidation
6.1 Reagents
6.2 Apparatus
6.3 Sampling and samples
6.4 Procedure
6.5 Expression of results
6.6 Test report
7 Determination of total phosphorus after nitric acid-
sulphuric acid digestion
7.1 Reagents
7.2 Apparatus
7.3 Sampling and samples
7.4 Procedure
7.5 Expression of results
7.6 Test report
Annex A (informative) Precision data
Annex B (informative) Interferences
Annex C (informative) Bibliography
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