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

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
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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

General information on trisodium orthophosphate.15 Annex B (normative)
General rules relating to safety.16 Bibliography.17
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

- 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

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

3) 100 kPa = 1 bar. SIST EN 1200:2005

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
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