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DIN EN ISO 15681-2:2005-05

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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)
Available format(s)

Hardcopy , PDF

Superseded date

04-05-2019

Language(s)

English

Published date

01-01-2005

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.

DevelopmentNote
Supersedes DIN 38405-30. (07/2004) DRAFT 2017 issued in September 2017. (09/2017)
DocumentType
Standard
Pages
20
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
Status
Superseded
Supersedes

DIN 19643-2:2012-11 Treatment of water of swimming pools and baths - Part 2: Combinations of process with fixed bed filters and precoat filters
DIN 19643-3:2012-11 Treatment of water of swimming pools and baths - Part 3: Combinations of process with ozonization
VDI 3478 Blatt 1:2011-03 Biological waste gas purification - Bioscrubbers
VDI 4320 Blatt 3:2017-01 Measurement of atmospheric depositions - Determination of the deposition of water-soluble anions and cations - Sampling with bulk- and wet only-collectors
DIN ISO 13065:2017-06 SUSTAINABILITY CRITERIA FOR BIOENERGY (ISO 13065:2015)
DIN EN ISO 5667-3:2013-03 WATER QUALITY - SAMPLING - PART 3: PRESERVATION AND HANDLING OF WATER SAMPLES (ISO 5667-3:2012)
DIN 19643-4:2012-11 Treatment of water of swimming pools and baths - Part 4: Combinations of process with ultrafiltration

ISO 5667-2:1991 Water quality Sampling Part 2: Guidance on sampling techniques
ISO 5667-3:2012 Water quality Sampling Part 3: Preservation and handling of water samples
ISO 5667-1:2006 Water quality Sampling Part 1: Guidance on the design of sampling programmes and sampling techniques
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 8466-1:1990 Water quality Calibration and evaluation of analytical methods and estimation of performance characteristics Part 1: Statistical evaluation of the linear calibration function
ISO 6878:2004 Water quality — Determination of phosphorus — Ammonium molybdate spectrometric method

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