SN EN ISO 15681-2 : 2005
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
WATER QUALITY - DETERMINATION OF ORTHOPHOSPHATE AND TOTAL PHOSPHORUS CONTENTS BY FLOW ANALYSIS (FIA AND CFA) - PART 2: METHOD BY CONTINUOUS FLOW ANALYSIS (CFA)
01-08-2019
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Interferences
3.1 General interferences
3.2 Interferences in the determination of total-P
4 Principle
4.1 Determination of orthophosphate
4.2 Total phosphorus with manual digestion
4.3 Total phosphorus with integral UV digestion and
hydrolysis
5 Reagents
6 Apparatus
6.1 Continuous-flow analysis (CFA)
6.2 Additional apparatus
6.3 Additional apparatus for the determination of total
phosphorus after integral digestion
7 Sampling and sample preparation
8 Procedure
8.1 Preparation for analysis
8.2 Instrument performance check
8.3 Reagent blank check
8.4 Calibration
8.5 Check of UV digestion and hydrolysis for total
P determination
8.6 Measurement
8.7 Closing down the system
9 Calculation of results
10 Expression of results
11 Test report
Annex A (informative) Examples of a CFA system
Annex B (informative) Precision and accuracy
Annex C (informative) Determination of orthophosphate-P
and total-P by CFA and tin(II)
chloride reduction
Bibliography
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