EN 1201:2005
(Main)Chemicals used for treatment of water intended for human consumption - Potassium dihydrogen orthophosphate
Chemicals used for treatment of water intended for human consumption - Potassium dihydrogen orthophosphate
This document is applicable to potassium dihydrogen orthophosphate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for potassium dihydrogen orthophosphate. It gives information on its use in water treatment.
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Monokaliumdihydrogenphosphat
Dieses Dokument gilt für Monokaliumdihydrogenphosphat zur Aufbereitung von Wasser für den menschlichen
Gebrauch. Es beschreibt die Eigenschaften von Monokaliumdihydrogenphosphat und legt die Anforderungen
sowie die entsprechenden Prüfverfahren für Monokaliumdihydrogenphosphat fest. Es gibt Informationen für
die Anwendung von Monokaliumdihydrogenphosphat in der Wasseraufbereitung.
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Dihydrogénophosphate de potassium
Le présent document est applicable au dihydrogénophosphate de potassium utilisé pour le traitement de l�eau
destinée à la consommation humaine. Il décrit les caractéristiques et spécifie les exigences et les méthodes
d�essai correspondantes pour le dihydrogénophosphate de potassium. Il donne des informations pour son
emploi dans le traitement de l�eau.
Kemikalije, ki se uporabljajo za pripravo pitne vode – Kalijev dihidrogen fosfat (V) (KH2PO4)
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 – Kalijev dihidrogen fosfat (V) (KH2PO4)Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - MonokaliumdihydrogenphosphatProduits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Dihydrogénophosphate de potassiumChemicals used for treatment of water intended for human consumption - Potassium dihydrogen orthophosphate71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 1201:2005SIST EN 1201:2005en01-julij-2005SIST EN 1201:2005SLOVENSKI
STANDARDSIST EN 1201:19991DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1201
March 2005 ICS 71.100.80 Supersedes EN 1201:1997 English version
Chemicals used for treatment of water intended for human consumption - Potassium dihydrogen orthophosphate
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Dihydrogénophosphate de potassium
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - MonokaliumdihydrogenphosphatThis 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 1201:2005: ESIST EN 1201:2005
General information on potassium dihydrogen orthophosphate.15 Bibliography.17 SIST EN 1201:2005
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 1201:2005
- 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 - Part1: 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 Potassium dihydrogen orthophosphate. SIST EN 1201:2005
3.1.3 Relative molecular mass 136,0. 3.1.4 Empirical formula KH2PO4. 3.1.5 Chemical formula KH2PO4. 3.1.6 CAS Registry Number 3) 7778-77-0. 3.1.7 EINECS reference 2) 231-913-4. 3.2 Commercial form The potassium dihydrogen 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 Potassium dihydrogen orthophosphate can be a component of mixtures sold for water treatment purposes. 3.3 Physical properties 3.3.1 Appearence Solid : The product is a white powder, granules or crystals. Liquid : The product is a clear solution. 3.3.2 Density Solid : The bulk density of the product varies from 500 g/dm3 to 1 100 g/dm3. Liquid : The density of solution is 1,036 g/ml for a product concentration of 50 g/l at 20 °C. 3.3.3 Solubility in water The solubility is water is approximately 220 g/l at 25 °C.
3) Chemical Abstracts Service Registry Number 2) European Inventory of Existing Commercial Chemical Substances SIST EN 1201:2005
For the solid product 250 °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 potassium dihydrogen orthophosphate have acidic reactions. The pH value of a solution
of a mass fraction of 1 % is approximately 4,5. 4 Purity criteria 4.1 General This document specifies the minimum purity requirements for potassium dihydrogen 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 materials 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 1201:2005
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. SIST EN 1201:2005
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 potassium dihydrogen orthophosphate. For parametric values of potassium dihydrogen orthophosphate on trace metal content in drinking water, see [1]. 5 Test methods 5.1 Sampling 5.1.1 General Observe the recommendations of ISO 3165 and take account of ISO 6206. 5.1.2 Solid Prepare the laboratory sample(s) required by the relevant procedure described in ISO 8213. 5.1.3 Liquid 5.1.3.1 Sampling from drums and bottles 5.1.3.1.1 General 5.1.3.1.1.1 Mix the contents of each container to be sampled by shaking the container, by rolling it or by rocking it from side to side, taking care not to damage the container or spill any of the liquid. 5.1.3.1.1.2 If the design of the container is such (for example, a narrow-necked bottle) that it is impracticable to use a sampling implement, take a sample by pouring after the contents have been thoroughly mixed. Otherwise, proceed as described in 5.1.3.1.1.3. 5.1.3.1.1.3 Examine the surface of the liquid. If there are signs of surface contamination, take samples from the surface as described in 5.1.3.1.2. Otherwise, take samples as described in 5.1.3.1.3. 5.1.3.1.2 Surface sampling Take a sample using a suitable ladle. Lower the ladle into the liquid until the rim is just below the surface, so that the surface layer runs into it. Withdraw the ladle just before it fills completely and allow any liquid adhering to the ladle to drain off. If necessary, repeat this operation so that, when the other selected containers have been sampled in a similar manner, the total volume of sample required for subsequent analysis is obtained. SIST EN 1201:2005
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