UNE-EN ISO 15681-2:2005
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA) (ISO 15681-2:2003)
Hardcopy , PDF
Spanish, Castilian, English
28-12-2005
21-10-2020
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
Defines CFA methods for the determination of orthophosphate in the mass concentration range from 0,01 mg/l to 1,00 mg/l P, and total phosphorus in the mass concentration range from 0,10 mg/l to 10,0 mg/l P.
| Committee |
CTN 77/SC 1
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Superseded
|
| Standards | Relationship |
| NEN EN ISO 15681-2 : 2005 | Identical |
| DIN EN ISO 15681-2:2005-05 | Identical |
| EN ISO 15681-2:2018 | Identical |
| NF EN ISO 15681-2 : 2005 | Identical |
| ISO 15681-2:2003 | Identical |
| NBN EN ISO 15681-2 : 2005 | Identical |
| BS EN ISO 15681-2:2004 | Identical |
| EN ISO 15681-2:2004 | Identical |
| I.S. EN ISO 15681-2:2005 | Identical |
| NS EN ISO 15681-2 : 1ED 2005 | Identical |
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