EN 12485:2017

Chemicals used for treatment of water intended for human consumption - Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime - Test methods

This European Standard specifies the methods used for the chemical analyses and the determination of physical properties of calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime used to treat water for human consumption.
This document specifies the reference methods and, in certain cases, an alternative method which can be considered to be equivalent.
Any other methods may be used provided they are calibrated, either against the reference methods or against internationally accepted reference materials, in order to demonstrate their equivalence.

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Calciumcarbonat, Weißkalk, halbgebrannter Dolomit, Magnesiumoxid, Calciummagnesiumcarbonat und Dolomitkalk - Prüfverfahren

Diese Europäische Norm legt die Verfahren zur chemischen Analyse und zur Bestimmung von physikalischen Eigenschaften von Calciumcarbonat, Weißkalk, halbgebranntem Dolomit, Magnesiumoxid, Calcium¬magnesiumcarbonat und Dolomitkalk zur Aufbereitung von Wasser für den menschlichen Gebrauch fest.
Dieses Dokument legt die Referenzverfahren und in einigen Fällen ein Alternativverfahren, das als gleichwertig angesehen werden kann, fest.
Andere Verfahren dürfen unter der Voraussetzung angewendet werden, dass diese gegen die Referenzverfahren oder gegen international anerkannte Referenzmaterialien kalibriert sind, um ihre Gleichwertigkeit nachzuweisen.

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Carbonate de calcium, chaux, dolomie semi-calcinée, oxyde de magnésium, carbonate de calcium et de magnésium et chaux dolomitique - Méthodes d'essai

La présente Norme européenne décrit les méthodes utilisées pour réaliser les analyses chimiques et déterminer les propriétés physiques du carbonate de calcium, de la chaux, de la dolomie semi-calcinée, de l’oxyde de magnésium, du carbonate de calcium et de magnésium et de la chaux dolomitique utilisés pour le traitement de l’eau destinée à la consommation humaine.
Le présent document spécifie les méthodes de référence et, dans certains cas, une méthode alternative qui peut être considérée comme étant équivalente.
D’autres méthodes peuvent être utilisées, dans la mesure où elles sont étalonnées, soit par rapport aux méthodes de référence, soit par rapport aux matériaux de référence internationalement reconnus, de manière à démontrer leur équivalence.

Kemikalije, ki se uporabljajo za pripravo pitne vode - Kalcijev karbonat, visoko kalcijevo apno in polžgan dolomit, magnezijev oksid in kalcij-magnezijev karbonat in dolomitno apno - Preskusne metode

Ta evropski standard določa metode, ki se uporabljajo za kemične analize in določanje fizikalnih lastnosti kalcijevega karbonata, visokega kalcijevega apna, polpraženega dolomita, magnezijevega oksida kalcijevega magnezijevega karbonata in dolomitskega apna za čiščenje vode za prehrano ljudi.
V tem dokumentu so opisane referenčne metode in v nekaterih primerih alternativna metoda, s katero lahko pridobimo enakovredne rezultate. V primeru spora se uporabijo le referenčne metode.
Uporabijo se lahko tudi druge metode, če so kalibrirane glede na referenčne metode ali mednarodno sprejete referenčne materiale, s čimer se dokaže njihova enakovrednost.

General Information

• Status: Published
• Publication Date: 25-Jul-2017
• Withdrawal Date: 30-Jan-2018
• ICS: 71.100.80 - Chemicals for purification of water
• Technical Committee: CEN/TC 164 - Water supply
• Drafting Committee: CEN/TC 164/WG 9 - Drinking water treatment
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 26-Jul-2017
• Due Date: 18-Jun-2017
• Completion Date: 26-Jul-2017
• Ref Project: SIST EN 12485:2017 - Chemicals used for treatment of water intended for human consumption - Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime - Test methods

Relations

• Replaces: EN 12485:2010 - Chemicals used for treatment of water intended for human consumption - Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide and calcium magnesium carbonate - Test methods
• Effective Date: 02-Aug-2017
• Revised: prEN 12485 - Chemicals used for treatment of water intended for human consumption - Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime - Test methods
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2017
1DGRPHãþD
SIST EN 12485:2011
Kemikalije, ki se uporabljajo za pripravo pitne vode - Kalcijev karbonat, visoko
kalcijevo apno in polžgan dolomit, magnezijev oksid in kalcij-magnezijev karbonat
in dolomitno apno - Preskusne metode
Chemicals used for treatment of water intended for human consumption - Calcium
carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium
carbonate and dolomitic lime - Test methods
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Calciumcarbonat, Weißkalk, halbgebrannter Dolomit, Magnesiumoxid,
Calciummagnesiumcarbonat und Dolomitkalk - Analytische Verfahren
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation
humaine - Carbonate de calcium, chaux, dolomie semi-calcinée, oxyde de magnésium,
carbonate de calcium et de magnésium et chaux dolomitique - Méthodes d'essai
Ta slovenski standard je istoveten z: EN 12485:2017
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 .HPLNDOLMH]DþLãþHQMHYRGH Chemicals for purification of
water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12485
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2017
EUROPÄISCHE NORM
ICS 71.100.80 Supersedes EN 12485:2010
English Version
Chemicals used for treatment of water intended for human
consumption - Calcium carbonate, high-calcium lime, half-
burnt dolomite, magnesium oxide, calcium magnesium
carbonate and dolomitic lime - Test methods
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Carbonate de menschlichen Gebrauch - Calciumcarbonat, Weißkalk,
calcium, chaux, dolomie semi-calcinée, oxyde de halbgebrannter Dolomit, Magnesiumoxid,
magnésium, carbonate de calcium et de magnésium et Calciummagnesiumcarbonat und Dolomitkalk -
chaux dolomitique - Méthodes d'essai Prüfverfahren
This European Standard was approved by CEN on 24 April 2017.

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,
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Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12485:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 6
1 Scope . 7
2 Normative references . 7
3 General requirements . 7
3.1 Number of determinations . 7
3.2 Methods for analysis . 8
3.3 Sample preparation . 10
3.4 Reagents . 10
3.5 Glassware . 11
3.6 Expression of results . 11
3.7 Repeatability and reproducibility limits . 12
3.8 Test report . 12
4 Determination of screen oversize of high-calcium lime . 12
4.1 Air-jet sieving method . 12
4.1.1 General . 12
4.1.2 Apparatus . 12
4.1.3 Procedure. 13
4.1.4 Expression of results . 14
4.2 Wet sieving method . 14
4.2.1 General . 14
4.2.2 Apparatus . 14
4.2.3 Procedure. 15
4.2.4 Expression of results . 15
5 Preparation of test solutions . 15
5.1 Fusion with lithium tetraborate . 15
5.1.1 General . 15
5.1.2 Principle . 16
5.1.3 Reagents . 16
5.1.4 Apparatus . 16
5.1.5 Procedure. 16
5.2 Extraction with hydrochloric acid . 16
5.2.1 General . 16
5.2.2 Principle . 16
5.2.3 Reagents . 16
5.2.4 Apparatus . 17
5.2.5 Procedure. 17
5.3 Microwave digestion with nitric acid . 17
5.3.1 General . 17
5.3.2 Principle . 17
5.3.3 Reagents . 17
5.3.4 Apparatus . 17
5.3.5 Procedure. 18
5.4 Pressurized digestion with nitric acid . 18
5.4.1 General . 18
5.4.2 Principle . 18
5.4.3 Reagent . 18
5.4.4 Apparatus . 18
5.4.5 Procedure . 18
6 Conventional methods of determining major and minor constituents . 19
6.1 Determination of free water . 19
6.1.1 General . 19
6.1.2 Principle . 19
6.1.3 Apparatus . 19
6.1.4 Procedure . 19
6.1.5 Expression of results . 20
6.2 Loss on ignition at 550 °C . 20
6.2.1 General . 20
6.2.2 Principle . 20
6.2.3 Apparatus . 20
6.2.4 Procedure . 20
6.2.5 Expression of results . 20
6.3 Determination of carbon dioxide. 21
6.3.1 General . 21
6.3.2 Principle . 21
6.3.3 Apparatus . 21
6.3.4 Procedure . 21
6.3.5 Expression of results .
...