EN ISO 15681-2:2018
(Main)Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA) (ISO 15681-2:2018)
Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA) (ISO 15681-2:2018)
This document specifies continuous flow analysis (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. The method includes the digestion of organic phosphorus compounds and the hydrolysis of inorganic polyphosphate compounds, performed either manually, as described in ISO 6878 and in References [4], [5] and [7], or with an integrated ultraviolet (UV) digestion and hydrolysis unit.
This document is applicable to various types of water, such as ground, drinking, surface, leachate and waste water. The range of application can be changed by varying the operating conditions.
This method is also applicable to the analysis of seawater, but with changes in sensitivity by adapting the carrier and calibration solutions to the salinity of the samples.
It is also applicable to analysis using 10 mm to 50 mm cuvettes depending on the desired range. For extreme sensitivity, 250 mm and 500 mm long way capillary flow cells (LCFCs) can be used. However, the method is not validated for these two uses. Changes in sensitivity and calibration solutions could be required.
Annex A provides examples of a CFA system. Annex B gives performance data from interlaboratory trials. Annex C gives information of determining orthophosphate-P and total-P by CFA and tin(II) chloride reduction.
Wasserbeschaffenheit - Bestimmung von Orthophosphat und Gesamtphosphor mittels Fließanalytik (FIA und CFA) - Teil 2: Verfahren mittels kontinuierlicher Durchflussanalyse (CFA) (ISO 15681-2:2018)
Dieses Dokument legt eine kontinuierliche Durchflussanalyse (CFA-Verfahren) für die Bestimmung von Orthophosphat in Massenkonzentrationen von 0,01 mg/l bis 1,00 mg/l P und von Gesamtphosphor für Massenkonzentrationen von 0,10 mg/l bis 10,0 mg/l P fest. Das Verfahren schließt den Aufschluss organischer Phosphorverbindungen und die Hydrolyse anorganischer Polyphosphat-Verbindungen ein, entweder manuell durchgeführt, wie in ISO 6878 und [4], [5] und [7] festgelegt oder mit einer integrierten UV Aufschluss- und Hydrolyseeinheit.
Dieses Dokument ist auf unterschiedliche Wässer anwendbar, wie Grund-, Trink-, Oberflächenwasser, Eluate und Abwasser. Der Anwendungsbereich kann durch Veränderung der Betriebsbedingungen variiert werden.
Das Verfahren ist auch auf Meerwasser anwendbar, jedoch unter Änderung der Empfindlichkeit; die Träger- und Bezugslösungen müssen an die Salinität der Probe angepasst werden.
Abhängig vom gewünschten Arbeitsbereich kann das Verfahren auch unter Verwendung von 10 mm bis 50 mm Küvetten durchgeführt werden. Für extreme Empfindlichkeit können 250 mm und 500 mm-Long Way Capillary Flow Cells (LCFCs) eingesetzt werden. Für diese beiden Anwendungen ist das Verfahren jedoch nicht validiert. Änderungen bei der Empfindlichkeit und bei den Bezugslösungen könnten dabei erforderlich werden.
Anhang A enthält Beispiele für ein CFA-System. Anhang B enthält Verfahrenskenndaten aus Ringversuchen. Anhang C enthält Informationen zur Bestimmung von Orthophosphat P und Gesamtphosphor mittels CFA und Zinn(II)chlorid-Reduktion.
Qualité de l'eau - Dosage des orthophosphates et du phosphore total par analyse en flux (FIA et CFA) - Partie 2: Méthode par analyse en flux continu (CFA) (ISO 15681-2:2018)
Le présent document spécifie des méthodes par analyse en flux continu (CFA) pour le dosage des orthophosphates dans le domaine de concentrations en masse allant de 0,01 mg/l à 1,00 mg/l (P), et pour le dosage du phosphore total dans le domaine de concentrations en masse allant de 0,10 mg/l à 10,0 mg/l (P). La méthode comprend la digestion des composés organiques du phosphore et l'hydrolyse des composés de polyphosphate inorganique, soit manuellement comme décrit dans l'ISO 6878 et dans les Références [4], [5] et [7], soit avec un dispositif de digestion intégrée à rayonnement ultraviolet (UV) et une unité d'hydrolyse.
Le présent document est applicable à différents types d'eau, tels que eau souterraine, eau de consommation, eau de surface, lixiviats et eaux usées. Il est possible de modifier le domaine d'application en faisant varier les conditions opératoires.
La présente méthode est également applicable à l'analyse de l'eau de mer moyennant une modification de la sensibilité et une adaptation des solutions vecteurs et des solutions d'étalonnage à la salinité des échantillons.
Elle est également applicable à l'analyse à l'aide de cuvettes de 10 mm à 50 mm selon le domaine souhaité. Pour une sensibilité extrême, il est également possible d'utiliser de longues cellules à flux capillaire (LCFC) de 250 mm et 500 mm. Toutefois, la méthode n'est pas validée pour ces deux usages. Il peut être nécessaire de modifier la sensibilité et les solutions d'étalonnage.
L'Annexe A donne des exemples de dispositif CFA. L'Annexe B donne des données de performance issues d'essais interlaboratoires. L'Annexe C fournit des informations sur le dosage des orthophosphates-P et du phosphore total par CFA, avec réduction par le chlorure d'étain(II).
Kakovost vode - Določevanje ortofosfata in celotnega fosforja s pretočno analizo (FIA in CFA) - 2. del: Metoda s kontinuirno pretočno analizo (CFA) (ISO 15681-2:2018)
Ta dokument določa metodo s kontinuirno pretočno analizo (CFA) za določevanje ortofosfata v območju masne koncentracije od 0,01 mg/l do 1,00 mg/l P in celotnega fosforja
v območju masne koncentracije od 0,10 mg/l do 10,0 mg/l P. Metoda vključuje razgradnjo organskih spojin iz fosforja in hidrolizo anorganskih spojin iz polifosfata, ki se izvajata bodisi ročno, kot je opisano v standardu ISO 6878 in v navedbah [4], [5] in [7], ali z vgrajeno ultravijolično (UV) enoto za izvajanje razgradnje in hidrolize.
Ta dokument se uporablja za različne vrste vod, kot so podtalnica, pitna voda, površinska voda ter izcedna in odpadna voda. Območje uporabe je mogoče spremeniti s spreminjanjem delovnih pogojev.
Ta metoda se uporablja tudi za analizo morske vode, vendar s spremembami v občutljivosti s prilagajanjem
nosilne in kalibracijske raztopine slanosti vzorcev.
Prav tako se uporablja za analizo z uporabo kivet velikosti od 10 mm do 50 mm, kar je odvisno od želenega območja. Pri
izjemni občutljivosti je mogoče uporabiti 250 mm in 500 mm dolge celice s kapilarnim tokom (LCFC). Metoda za ti dve vrsti uporabe ni potrjena. Morda bo treba spremeniti občutljivost in kalibracijske raztopine.
V dodatku A so podani primeri sistema kontinuirane pretočne analize (CFA). V dodatku B so podatki o zmogljivosti, pridobljeni z medlaboratorijskimi
poskusi. V dodatku C so informacije o določevanju ortofosfata in celotnega fosforja s kontinuirano pretočno analizo in redukcijo kositrovega(II)
klorida.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2019
1DGRPHãþD
SIST EN ISO 15681-2:2005
.DNRYRVWYRGH'RORþHYDQMHRUWRIRVIDWDLQFHORWQHJDIRVIRUMDVSUHWRþQRDQDOL]R
),$LQ&)$ GHO 0HWRGDVNRQWLQXLUQRSUHWRþQRDQDOL]R &)$ ,62
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-
2:2018)
Wasserbeschaffenheit - Bestimmung von Orthophosphat und Gesamtphosphor mittels
Fließanalytik (FIA und CFA) - Teil 2: Verfahren mittels kontinuierlicher Durchflussanalyse
(CFA) (ISO 15681-2:2018)
Qualité de l'eau - Dosage des orthophosphates et du phosphore total par analyse en flux
(FIA et CFA) - Partie 2: Méthode par analyse en flux continu (CFA) (ISO 15681-2:2018)
Ta slovenski standard je istoveten z: EN ISO 15681-2:2018
ICS:
13.060.50 3UHLVNDYDYRGHQDNHPLþQH Examination of water for
VQRYL chemical substances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 15681-2
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2018
EUROPÄISCHE NORM
ICS 13.060.50 Supersedes EN ISO 15681-2:2004
English Version
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-
2:2018)
Qualité de l'eau - Dosage des orthophosphates et du Wasserbeschaffenheit - Bestimmung von
phosphore total par analyse en flux (FIA et CFA) - Orthophosphat und Gesamtphosphor mittels
Partie 2: Méthode par analyse en flux continu (CFA) Fließanalytik (FIA und CFA) - Teil 2: Verfahren mittels
(ISO 15681-2:2018) kontinuierlicher Durchflussanalyse (CFA) (ISO 15681-
2:2018)
This European Standard was approved by CEN on 10 August 2018.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15681-2:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 15681-2:2018) has been prepared by Technical Committee ISO/TC 147 "Water
quality" in collaboration with Technical Committee CEN/TC 230 “Water analysis” the secretariat of
which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2019, and conflicting national standards shall be
withdrawn at the latest by June 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 15681-2:2004.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 15681-2:2018 has been approved by CEN as EN ISO 15681-2:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 15681-2
Second edition
2018-10
Water quality — Determination
of orthophosphate and total
phosphorus contents by flow analysis
(FIA and CFA) —
Part 2:
Method by continuous flow analysis
(CFA)
Qualité de l'eau — Dosage des orthophosphates et du phosphore total
par analyse en flux (FIA et CFA) —
Partie 2: Méthode par analyse en flux continu (CFA)
Reference number
ISO 15681-2:2018(E)
©
ISO 2018
ISO 15681-2:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ISO 15681-2:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Interferences . 2
4.1 General interferences . 2
4.2 Interferences in the determination of total-P . 2
5 Principle . 3
5.1 Determination of orthophosphate . 3
5.2 Total phosphorus with manual digestion . 3
5.3 Total phosphorus with integral UV digestion and hydrolysis . 3
6 Reagents . 3
7 Apparatus . 7
8 Sampling and sample preparation . 9
9 Procedure. 9
9.1 Preparation for analysis . 9
9.2 Instrument performance check . 9
9.3 Reagent blank check . 9
9.4 Calibration .10
9.5 Check of UV digestion and hydrolysis for total P determination (Figures A.2 and A.3) .10
9.6 Measurement .10
9.7 Closing down the system .10
10 Calculation of results .11
11 Expression of results .11
12 Test report .11
Annex A (informative) Examples of a CFA system .12
Annex B (informative) Performance data .15
Annex C (informative) Determination of orthophosphate-P and total-P by CFA and tin(II)
chloride reduction .17
Bibliography .18
ISO 15681-2:2018(E)
Foreword
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