EN 12518:2014
(Main)Chemicals used for treatment of water intended for human consumption - High-calcium lime
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 Prüf¬verfahren 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 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 et spécifie les exigences et les méthodes d'essai correspondantes de la chaux. Elle donne des informations pour son emploi dans le traitement de l'eau. Elle définit également les règles de sécurité de manipulation et d’utilisation (voir Annexe B).
Kemikalije, ki se uporabljajo za pripravo pitne vode - Visoko kalcijevo apno
Standard EN 12518 obravnava visoko kalcijevo apno, ki se uporablja za pripravo pitne vode. Opisuje značilnosti visokega kalcijevega apna ter določa zahteve in ustrezne preskusne metode zanj. Standard podaja informacije za uporabo visokega kalcijevega apna pri pripravi vode. Določa tudi predpise za varno ravnanje in uporabo (glej dodatek B).
General Information
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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 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 12518:2014SIST EN 12518:2014en,fr,de01-oktober-2014SIST EN 12518:2014SLOVENSKI
STANDARDSIST EN 12518:20081DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12518
July 2014 ICS 71.100.80 Supersedes EN 12518:2008English Version
Chemicals used for treatment of water intended for human consumption - High-calcium lime
Produits chimiques pour le traitement de l'eau destinée à la consommation humaine - Chaux
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Weißkalk This European Standard was approved by CEN on 20 June 2014.
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, 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:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12518:2014 ESIST EN 12518:2014
General information on high-calcium lime . 13 A.1 Origin . 13 A.1.1 Raw materials . 13 A.1.2 Manufacturing process . 13 A.2 Use . 13 A.2.1 Function . 13 A.2.2 Form in which it is used . 13 A.2.3 Other properties . 13 A.2.4 Treatment dose . 13 A.2.5 Means of application . 14 A.2.6 Secondary effects . 14 A.2.7 Removal of excess product . 14 Annex B (normative)
General rules relating to safety . 15 B.1 Rules for safe handling and use . 15 B.2 Emergency procedures . 15 B.2.1 First aid . 15 B.2.2 Spillage . 15 B.2.3 Fire . 15 Bibliography . 16
1,65 g/l at 20 °C
1,53 g/l at 30 °C
1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. SIST EN 12518:2014
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: 2 570 °C. b) Calcium hydroxide: Decomposes at 580 °C and forms calcium oxide and water. c) 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. 3.4 Chemical properties Aqueous suspensions are strongly alkaline. Calcium oxide (CaO) reacts with water to form calcium hydroxide Ca(OH)2, and with acids to form calcium salts. These reactions are highly exothermic.
3) 100 kPa = 1 bar. SIST EN 12518:2014
Content of water-soluble Ca(OH)2 in dry substance expressed as Ca(OH)2 in mass fraction in %
≥ 92a ≥ 87 ≥ 83 ≥ 92a ≥ 87 ≥ 83 Retention on sieving in mass fraction in % dry substance
0,60 mm ≤ 0,1 ≤ 0,1 ≤ 0,1 not applicable ≤ 0,1 ≤ 0,1 ≤ 0,1 ≤ 0,1 ≤ 0,1 ≤ 0,1 0,09 mm ≤ 7,0 ≤ 7,0 ≤ 7,0 not applicable ≤ 5,5 ≤ 5,5 ≤ 5,5 ≤ 5,5 ≤ 5,5 ≤ 5,5 a The user may specify a higher content of lime. b See A.2.3 (for solubility index). 4.3 Impurities The products shall conform to the requirements specified in Table 2. SIST EN 12518:2014
EN 12518:
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