EN 12518:2008

Chemicals used for treatment of water intended for human consumption - High-calcium lime

This European Standard is applicable to high-calcium lime used for treatment of water intended for human consumption. It describes the characteristics of high-calcium lime and specifies the requirements and the corresponding test methods for high-calcium lime. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Weißkalk

Diese Europäische Norm gilt für Weißkalk zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie
beschreibt die Eigenschaften von Weißkalk und legt die Anforderungen sowie die entsprechenden Prüfverfahren
für Weißkalk fest. Sie enthält Angaben zu seiner Anwendung in der Wasseraufbereitung. Sie legt
darüber hinaus Regeln für die sichere Handhabung und Verwendung fest (siehe Anhang B).

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Chaux

La présente Norme européenne est applicable à la chaux utilisée pour le traitement de l'eau destinée à la
consommation humaine. Elle décrit les caractéristiques de la chaux et spécifie les exigences et les méthodes
d'essai correspondant à la chaux. Elle donne des informations pour son emploi dans le traitement de l'eau.
Elle fixe également les règles relatives à la sécurité d’emploi et de manipulation (voir Annexe B).

Kemikalije, ki se uporabljajo za pripravo pitne vode - Visoko kalcijevo apno

General Information

• Status: Withdrawn
• Publication Date: 15-Jan-2008
• Withdrawal Date: 29-Jul-2014
• 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: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 30-Jul-2014
• Ref Project: SIST EN 12518:2008 - Chemicals used for treatment of water intended for human consumption - High-calcium lime

Relations

• Replaces: EN 12518:2000 - Chemicals used for treatment of water intended for human consumption - High-calcium lime
• Effective Date: 22-Dec-2008
• Replaced By: EN 12518:2014 - Chemicals used for treatment of water intended for human consumption - High-calcium lime
• Effective Date: 06-Aug-2014

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kemikalije, ki se uporabljajo za pripravo pitne vode - Visoko kalcijevo apnoProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - WeißkalkProduits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - ChauxChemicals used for treatment of water intended for human consumption - High-calcium lime71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 12518:2008SIST EN 12518:2008en,fr,de01-marec-2008SIST EN 12518:2008SLOVENSKI
STANDARDSIST EN 12518:20011DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12518January 2008ICS 71.100.80Supersedes EN 12518:2000
English VersionChemicals used for treatment of water intended for humanconsumption - High-calcium limeProduits chimiques utilisés pour le traitement de l'eaudestinée à la consommation humaine - ChauxProdukte zur Aufbereitung von Wasser für denmenschlichen Gebrauch - WeißkalkThis European Standard was approved by CEN on 30 November 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12518:2008: ESIST EN 12518:2008

General information on high-calcium lime.13 Annex B (normative)
General rules relating to safety.15 Bibliography.16
a) Calcium oxide: 1305-78-8; b) Calcium hydroxide: 1305-62-0. 3.1.8 EINECS reference 2) a) Calcium oxide: 215-138-9; b) Calcium hydroxide: 215-137-3. 3.2 Commercial forms High-calcium lime is available in the following commercial forms:  pulverized high calcium lime (quicklime): white powder (CaO);  lump high-calcium lime (quicklime): white lump (CaO);  hydrated high-calcium lime: white powder, (Ca(OH)2);  milk of lime: aqueous suspension of calcium hydroxide (usual content of calcium hydroxide is a mass fraction between 10 % to 40 %. 3.3 Physical properties 3.3.1 Appearance a) Calcium oxide: white, lumps or powder; b) Calcium hydroxide: white powder. Calcium hydroxide suspension: aqueous, milky suspension. 3.3.2 Density a) Calcium oxide: 3,35 kg/dm3 at 20 °C. Bulk density: 800 kg/m3 to 1 200 kg/m3; b) Calcium hydroxide: 2,24 kg/dm3 at 20 °C. Bulk density: 300 kg/m3 to 600 kg/m3. 3.3.3 Solubility (in water) Calcium oxide: not applicable.
1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. SIST EN 12518:2008

0 °C 1,76 g/l at 10 °C 1,65 g/l at 20 °C 1,53 g/l at 30 °C 1,40 g/l at 40 °C 1,28 g/l at 50 °C 1,16 g/l at 60 °C 1,04 g/l at 70 °C 0,92 g/l at 80 °C 0,81 g/l at 90 °C 0,71 g/l at 100 °C.
3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa3) a) Calcium oxide: 2 850 °C; b) Calcium hydroxide: Decomposes at 580 °C and forms calcium oxide and water.
3.3.6 Melting point a)
Calcium oxide: 2570 °C; b)
Calcium hydroxide: Decomposes at 580 °C and forms calcium oxide and water. Calcium hydroxide suspension freezes at 0 °C. 3.3.7 Specific heat Not applicable. 3.3.8 Viscosity (dynamic) For calcium hydroxide suspension depends on concentration and particle size. 3.3.9 Critical temperature Not applicable. 3.3.10 Critical pressure Not applicable. 3.3.11 Physical hardness Not applicable.
3) 100 kPa = 1 bar. SIST EN 12518:2008
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