I.S. EN ISO 15681-1:2005
Current
The latest, up-to-date edition.
WATER QUALITY - DETERMINATION OF ORTHOPHOSPHATE AND TOTAL PHOSPHORUS CONTENTS BY FLOW ANALYSIS (FIA AND CFA) - PART 1: METHOD BY FLOW INJECTION ANALYSIS (FIA)
Hardcopy , PDF
English
01-01-2005
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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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
5 Reagents
6 Apparatus
6.1 Flow injection analysis (FIA)
6.2 Additional apparatus
6.3 Additional apparatus for the determination of total
phosphorus
7 Sampling and sample preparation
8 Procedure
8.1 Analysis preparation
8.2 Instrument performance check
8.3 Reagent blank check
8.4 Calibration
8.5 Check of digestion efficiency for determination of
total-P
8.6 Measurement
8.7 Closing down the system
9 Calculation of results
10 Expression of results
11 Test report
Annex A (informative) Example of an FIA system
Annex B (informative) Precision and accuracy
Annex C (informative) Determination of orthophosphate-P and
total-P by FIA using ascorbic acid reduction
Annex D (informative) Replacement of hydrazine sulfate by
DEHA (N,N-diethylhydroxylamine)
Bibliography
Provides flow injection analysis (FIA) methods for the determination of orthophosphate in the mass concentration range from 0,01 mg/l to 1,0 mg/l (P), and total phosphorus by manual digestion in accordance with ISO 6878 [5], [6] for the mass concentration range from 0,1 mg/l to 10 mg/l (P).
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| BS EN ISO 15681-1:2004 | Identical |
| UNI EN ISO 15681-1 : 2005 | Identical |
| DIN EN ISO 15681-1:2005-05 | Identical |
| ISO 15681-1:2003 | Identical |
| EN ISO 15681-1:2004 | Identical |
| UNE-EN ISO 15681-1:2005 | Identical |
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