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NS EN ISO 15681-2 : 1ED 2005

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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)
Superseded date

03-16-2019

Published date

01-12-2013

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

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.

DocumentType
Standard
PublisherName
Norwegian Standards (Norges Standardiseringsforbund)
Status
Superseded
SupersededBy

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