SIST EN 1204:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kemikalije, ki se uporabljajo za pripravo pitne vode – Kalcijev dihidrogen fosfat (V) (Ca(H2PO4)2)Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Calciumtetrahydrogen-bis-orthophosphatProduits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Bis-dihydrogénophosphate de calciumChemicals used for treatment of water intended for human consumption - Calcium tetrahydrogen bis(orthophosphate)71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 1204:2005SIST EN 1204:2005en01-julij-2005SIST EN 1204:2005SLOVENSKI
STANDARDSIST EN 1204:19991DGRPHãþD



SIST EN 1204:2005



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1204
March 2005 ICS 71.100.80 Supersedes EN 1204:1997 English version
Chemicals used for treatment of water intended for human consumption - Calcium tetrahydrogen bis(orthophosphate)
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Bis-dihydrogénophosphate de calcium
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Calciumtetrahydrogen-bis-orthophosphat This European Standard was approved by CEN on 3 February 2005.
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 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 translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1204:2005: ESIST EN 1204:2005



EN 1204:2005 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Description.6 4 Purity criteria.8 5 Test methods.9 6 Labelling - Transportation - Storage.11 Annex A (informative)
General information on calcium tetrahydrogen bis(orthophosphate).13 Bibliography.15
SIST EN 1204:2005



EN 1204:2005 (E) 3 Foreword This document (EN 1204:2005) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. 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 September 2005, and conflicting national standards shall be withdrawn at the latest by September 2005. This document supersedes EN 1204:1997. Significant technical differences between this edition and EN 1204:1997 are as follows: a) deletion of the reference to EU Directive 80/778/EEC of July, 15 1980 in order to take into account of the last Directive in force (see [1]); b) replacement of ISO 5666-1 by EN 1483 and of
EN 26595 by EN ISO 11969. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 1204:2005



EN 1204:2005 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this document: a) this document provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA; b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. NOTE Conformity with this document does not confer or imply acceptance or approval of the product in any of the Member States of the EU of EFTA. The use of the product covered by this document is subject to regulation or control by National Authorities.
SIST EN 1204:2005



EN 1204:2005 (E) 5 1 Scope This document is applicable to calcium tetrahydrogen bis(orthophosphate) used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding tests methods for calcium tetrahydrogen bis(orthophosphate). It gives information on its use in water treatment. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies. EN 1483, Water quality – Determination of mercury. EN ISO 3696, Water for analytical laboratory use – Specification and test methods (ISO 3696:1987). EN ISO 5961, Water quality – Determination of cadmium by atomic absorption spectrometry. EN ISO 11885, Water quality – Determination of 33 elements by inductively coupled plasma atomic emission spectroscopy (ISO 11885:1996) . EN ISO 11969, Water quality
- Determination of arsenic- Atomic absorption spectrometric method (hydride technique (ISO 11969:1996)). ISO 2997, Phosphoric acid for industrial use – Determination of sulfate content – Method by reduction and titrimetry. ISO 3165, Sampling of chemical products for industrial use – Safety in sampling. ISO 3357, Sodium tripolyphosphate and sodium pyrophosphate for industrial use – Determination of total phosphorus (V) oxide content – Quinoline phosphomolybdate gravimetric method. ISO 3360, Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) – Determination of fluorine content – Alizarin complexone and lanthanum nitrate photometric method. ISO 5373, Condensed phosphates for industrial use (including foodstuffs) – Determination of calcium content – Flame atomic absorption spectrometric method. ISO 6206, Chemical products for industrial use – Sampling – Vocabulary. ISO 6703-1, Water quality – Determination of cyanide – Part 1 : Determination of total cyanide. ISO 8213, Chemical products for industrial use – Sampling techniques – Solid chemical products in the form of particles varying from powders to coarse lumps. ISO 8288, Water quality – Determination of cobalt, nickel, copper, zinc, cadmium and lead – Flame atomic absorption spectrometric methods. ISO 9174, Water quality – Determination of chromium – Atomic absorption spectrometric methods. ISO 9965, Water quality – Determination of selenium – Atomic absorption spectrometric method (hydride technique).
SIST EN 1204:2005



EN 1204:2005 (E) 6 3 Description 3.1 Identification 3.1.1 Chemical name Calcium tetrahydrogen bis(orthophosphate). 3.1.2 Synonym or common name Monocalcium phosphate. 3.1.3 Relative molecular mass 234,0. 3.1.4 Empirical formula Ca(H2PO4)2. 3.1.5 Chemical formula Ca(H2PO4)2. 3.1.6 CAS Registry Number1) 7758-11-4. 3.1.7 EINECS reference2) 231-837-1. 3.2 Commercial form The calcium tetrahydrogen bis(orthophosphate) is a powder. 3.3 Physical properties 3.3.1 Appearance The product is a white powder. 3.3.2 Density The bulk density of the product varies from 500 g/dm3 to 800 g/dm3. 3.3.3 Solubility in water The solubility in water is approximately 0,005 g/l at 25 °C.
1) Chemical Abstrats Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. SIST EN 1204:2005



EN 1204:2005 (E) 7 3.3.4 Vapour pressure Not app
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