EN 12175:2006
(Main)Chemicals used for treatment of water intended for human consumption - Hexafluorosilicic acid
Chemicals used for treatment of water intended for human consumption - Hexafluorosilicic acid
This document is applicable to hexafluorosilicic acid used for treatment of water intended for human consumption. It describes the characteristics of hexafluorosilicic acid and specifies the requirements and the corresponding test methods for hexafluorosilicic acid. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of hexafluorosilicic acid (see Annex B).
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Hexafluorkieselsäure
Dieses Dokument gilt für Hexafluorkieselsäure zur Aufbereitung von Wasser für den menschlichen Gebrauch. Es beschreibt die Eigenschaften von Hexafluorkieselsäure und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Hexafluorkieselsäure fest. Es gibt Informationen für ihre Anwendung in der Wasseraufbereitung. Es legt darüber hinaus Regeln für die sichere Handhabung und Benutzung von Hexafluorkieselsäure fest (siehe Anhang B).
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Acid hexafluorosilicique
Kemikalije, ki se uporabljajo za pripravo pitne vode – Heksafluorosilicijeva kislina
General Information
Relations
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 – Heksafluorosilicijeva kislinaProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - HexafluorkieselsäureProduits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Acid hexafluorosiliciqueChemicals used for treatment of water intended for human consumption - Hexafluorosilicic acid71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 12175:2006SIST EN 12175:2006en01-oktober-2006SIST EN 12175:2006SLOVENSKI
STANDARDSIST EN 12175:20011DGRPHãþD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12175July 2006ICS 71.100.80Supersedes EN 12175:2001
English VersionChemicals used for treatment of water intended for humanconsumption - Hexafluorosilicic acidProduits chimiques utilisés pour le traitement de l'eaudestinée à la consommation humaine - AcidhexafluorosiliciqueProdukte zur Aufbereitung von Wasser für denmenschlichen Gebrauch - HexafluorkieselsäureThis European Standard was approved by CEN on 23 June 2006.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12175:2006: ESIST EN 12175:2006
General information on hexafluorosilicic acid.19 A.1 Origin.19 A.2 Use.19 Annex B (normative)
General rules relating to safety.20 B.1 Rules for safe handling and use.20 B.2 Emergency procedures.20 Bibliography.21
The density of a mass fraction 20 % solution at 25 °C is 1,18 g/ml. 3.3.3 Solubility (in water) The product is miscible in any proportion. 3.3.4 Vapour pressure The vapour pressure at 20 °C is approximately 3 kPa3). 3.3.5 Boiling point at 100 kPa The product boils and decomposes at 110 °C.
3.3.6 Crystallisation point A solution of mass fraction of 35 % crystallizes at -30 °C and of a mass fraction of 20 % crystallizes at -11,6 °C. 3.3.7 Specific heat Not known.
1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar. SIST EN 12175:2006
max. 0,75 Free hydrogen fluoride as HF
max. 1,5 4.4 Chemical parameters The product shall conform to the requirements specified in Table 2. Table 2 — Chemical parameters Parameter Limit
mg/kg H2SiF6 (100 %)
Antimony (Sb) max. 80 Arsenic (As) max. 400 Cadmium (Cd) max. 40 Chromium (Cr) max. 400 Lead (Pb) max. 400 Mercury (Hg) max. 10 Nickel (Ni) max. 400 Selenium (Se) max. 80 NOTE Other chemical parameters and indicator parameters are not relevant in hexafluorosilicic acid because the raw materials used in the manufacturing process are free of them. For parametric values of hexafluorosilicic acid on trace metal content in drinking water, see [1]. 5 Test methods 5.1 General SAFETY PRECAUTIONS Hexafluorosilicic acid shall be handled with extreme care, see B.1. All equipment in contact with hexafluorosilicic acid shall be made of plastics (for example polyethylene or polytetrafluoroethylene (PTFE); avoid contact with gla
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