SIST EN 1200:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kemikalije, ki se uporabljajo za pripravo pitne vode – Trinatrijev fosfatProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - TrinatriumphosphatProduits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Phosphate trisodiqueChemicals used for treatment of water intended for human consumption - Trisodium orthophosphate71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 1200:2005SIST EN 1200:2005en01-julij-2005SIST EN 1200:2005SLOVENSKI
STANDARDSIST EN 1200:19991DGRPHãþD



SIST EN 1200:2005



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1200
March 2005 ICS 71.100.80 Supersedes EN 1200:1997 English version
Chemicals used for treatment of water intended for human consumption - Trisodium orthophosphate
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Phosphate trisodique
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Trinatriumphosphat 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 1200:2005: ESIST EN 1200:2005



EN 1200:2005 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Description.5 4 Purity criteria.7 5 Test methods.9 6 Labelling – Transportation – Storage.13 Annex A (informative)
General information on trisodium orthophosphate.15 Annex B (normative)
General rules relating to safety.16 Bibliography.17
SIST EN 1200:2005



EN 1200:2005 (E) 3 Foreword This document (EN 1200:2005) 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 1200:1997. Significant technical differences between this edition and EN 1200:1997 are as follows: a) deletion of this 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; c) introduction of annex B as normative. 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 1200:2005



EN 1200:2005 (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 or EFTA. The use of the product covered by this document is subject to regulation or control by National Authorities.
SIST EN 1200:2005



EN 1200:2005 (E) 5 1 Scope This document is applicable to trisodium orthophosphate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for trisodium orthophosphate. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see annex A). 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 (ISO 5961:1994). 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 3360, Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) - Determination of fluorine content – Alizarin complexone and lanthanum nitrate photometric 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). 3 Description 3.1 Identification 3.1.1 Chemical name Trisodium orthophosphate. SIST EN 1200:2005



EN 1200:2005 (E) 6 3.1.2 Synonym or common name Sodium phosphate, tribasic.
3.1.3 Relative molecular mass 164,0. 3.1.4 Empirical formula Na3PO4. 3.1.5 Chemical formula Na3PO4. 3.1.6 CAS Registry Number1) 7601-54-9. 3.1.7 EINECS reference2) 231-509-8. 3.2 Commercial forms The trisodium orthophosphate is available in a number of different forms (see 3.3.1). Different commercial forms, solids or dissolved in water are possible. All concentrations mentioned refer to the active matter and shall be calculated accordingly. NOTE Trisodium orthophosphate can be a component of mixtures sold for water treatment purposes. 3.3 Physical properties 3.3.1 Appearance Solid : the product is a white powder or granules. Liquid : the product is a clear solution. 3.3.2 Density Solid : the bulk density of this product varies from 400 g/dm3 to 1 000 g/dm3. Liquid : the density of solution is 1,047 g/ml for a product concentration of 50 g/l at 20 °C. 3.3.3 Solubility in water The solubility in water is approximately 120 g/l at 25 °C.
1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. SIST EN 1200:2005



EN 1200:2005 (E) 7 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa3) Not applicable. 3.3.6 Melting point For the solid product, 1 600 °C. 3.3.7 Specific heat Not known. 3.3.8 Viscosity (dynamic) For the solid product it is not applicable. For the liquid the viscosity is equal to 5 mPa.s for a product concentration of 50 g/l. 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 The solutions of trisodium orthophosphate have alkaline reactions. The pH value of a solution of a mass fraction of 1 % is approximately 12. 4 Purity criteria 4.1 General This document specifies the minimum purity requirements for trisodium orthophosphate used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the product. Depending on the raw material and the manufacturing process other impurities may be present and, if so, this shall be notified to the user and when necessary to relevant authorities. NOTE Users of this product should check the national regulations in order to clarify whether it is of appropriate purity for treatment of water intended for human consumption, taking into account raw water quality, required dosage, contents of other impurities and additives used in the products not stated in this document.
3) 100 kPa = 1 bar. SIST EN 1200:2005



EN 1200:2005 (E) 8 Limits have been given for impurities and chemical parameters where these are likely to be present in significant quantities from the current production process and raw materials. If the production process or raw materials leads to significant quantities of impurities, by-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial product The product shall conform to the following requirements on a dry mass basis :  phosphate content expressed as P2O5 :
mass fraction of (41 ± 1,0) in %
;  sodium content expressed as Na2O :
mass fraction of (53 ± 1,0) in % . 4.3 Impurities and main by-products The product shall conform to the requirements specified in Table 1. Table 1 — Impurities Impurity
Limit
mg/kg of dry product Sulfate (SO42-) max.500 Fluoride (F-) max.10 4.4 Chemical parameters Content of various chemical parameters depends on the origin of the raw materials, most of these elements are present only as traces. The product shall conform to the requirements specified in Table 2. Table 2 — Chemical parameters Parameter
Limit
mg/kg of dry product Antimony (Sb) max. 3 Arsenic (As) max. 3 Cadmium (Cd) max. 3 Chromium (Cr) max. 10 Cyanide (CN) max. 5 Lead (Pb) max. 10 Mercury (Hg) max. 1 Nickel (Ni) max. 10 Selenium (Se) max. 3 NOTE Pesticides and polycyclic aromatic hydrocarbons are not relevant in trisodium orthophosphate. For parametric values of trisodium orthophosphate on trace metal content in drinking water, see [1]. SIST EN 1200:2005



EN 1200:2005
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