SIST EN 1202:2005
(Main)Chemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate
Chemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate
This document is applicable to dipotassium hydrogen orthophosphate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for dipotassium hydrogen orthophosphate. It gives information on its use in water treatment.
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Dikaliummonohydrogenphosphat
Dieses Dokument gilt für Dikaliummonohydrogenphosphat zur Aufbereitung von Wasser für den menschlichen
Gebrauch. Es beschreibt die Eigenschaften von Dikaliummonohydrogenphosphat und legt die Anforderungen
sowie die entsprechenden Prüfverfahren für Dikaliummonohydrogenphosphat fest. Es gibt Informationen für
die Anwendung von Dikaliummonohydrogenphosphat in der Wasseraufbereitung.
Produits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Hydrogénophosphate de potassium
Le présent document est applicable à l�hydrogénophosphate 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 l�hydrogénophosphate de potassium. Il donne des informations pour son emploi
dans le traitement de l�eau.
Kemikalije, ki se uporabljajo za pripravo pitne vode – Dikalijev hidrogen fosfat
General Information
- Status
- Published
- Publication Date
- 30-Jun-2005
- Technical Committee
- IOVO - Water supply and waste water engineering
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Jul-2005
- Due Date
- 01-Jul-2005
- Completion Date
- 01-Jul-2005
- Directive
- 89/106/EEC - Construction products
- Directive
- TP262 - Uredba o pitni vodi
Relations
- Effective Date
- 22-Dec-2008
Overview
EN 1202:2005 (CEN) defines requirements for dipotassium hydrogen orthophosphate (K2HPO4) used in the treatment of water intended for human consumption. The standard describes the product identity (CAS 7758-11-4, relative molecular mass 174.0, formula K2HPO4), commercial forms (solid white powder or clear solution), physical properties (solubility ~1 590 g/l at 25 °C, 1 % solution pH ≈ 9–9.2) and the minimum purity, impurity limits and test methods required to demonstrate conformance. It also provides guidance on sampling, labelling, transportation and storage and notes that national regulations may impose additional controls.
Key Topics
- Scope and identification
- Applicable to dipotassium hydrogen orthophosphate for drinking-water treatment.
- Chemical identifiers and common names (potassium phosphate, dibasic).
- Composition and purity criteria
- Required composition on dry mass basis: P2O5 ≈ 41 ± 1.0 %; K2O ≈ 53.5 ± 1.0 %.
- Specified impurity limits (mg/kg dry product): sulfate ≤ 500; fluoride ≤ 10.
- Trace element limits (mg/kg): As, Sb, Cd, Se ≤ 3; Hg ≤ 1; Pb, Cr, Ni ≤ 10, etc.
- Physical and chemical properties
- Appearance, density, solubility, melting point and typical solution pH.
- Sampling and test methods
- Sampling procedures for solids, drums, tanks and tankers (ISO 3165, ISO 8213).
- Analytical tests: alkalimetric titration for phosphate/K2O content; atomic absorption or ICP methods for trace metals; ISO methods for sulfate and fluoride.
- Labelling, transport and storage
- Requirements for safe handling, transportation and storage are addressed (see Clause 6).
Applications and Users
- Practical uses:
- Corrosion control, pH buffering and phosphate dosing in potable water treatment systems.
- Component in formulated water-treatment products.
- Who uses EN 1202:2005:
- Water utilities and municipal drinking-water operators assessing chemical quality.
- Chemical manufacturers and suppliers of dipotassium hydrogen orthophosphate.
- Laboratories performing conformity testing and regulatory compliance checks.
- Regulators and procurement teams specifying material acceptance criteria.
Related Standards
EN 1202:2005 references numerous normative documents for test methods and sampling, for example:
- EN 1483, EN ISO 3696, EN ISO 11969, EN ISO 11885
- ISO 2997, ISO 3360, ISO 3165, ISO 8213, ISO 6206
Note: Conformity with EN 1202:2005 defines minimum product quality for potable water use but does not by itself guarantee regulatory acceptance in all EU/EFTA member states; national rules and parametric values should be consulted.
Frequently Asked Questions
SIST EN 1202:2005 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Chemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate". This standard covers: This document is applicable to dipotassium hydrogen orthophosphate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for dipotassium hydrogen orthophosphate. It gives information on its use in water treatment.
This document is applicable to dipotassium hydrogen orthophosphate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for dipotassium hydrogen orthophosphate. It gives information on its use in water treatment.
SIST EN 1202:2005 is classified under the following ICS (International Classification for Standards) categories: 13.060.20 - Drinking water; 71.100.80 - Chemicals for purification of water. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 1202:2005 has the following relationships with other standards: It is inter standard links to SIST EN 1202:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 1202:2005 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC, TP262. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 1202:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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 – Dikalijev hidrogen fosfatProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - DikaliummonohydrogenphosphatProduits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Hydrogénophosphate de potassiumChemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 1202:2005SIST EN 1202:2005en01-julij-2005SIST EN 1202:2005SLOVENSKI
STANDARDSIST EN 1202:19991DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1202
March 2005 ICS 71.100.80 Supersedes EN 1202:1997 English version
Chemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Hydrogénophosphate de potassium
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - DikaliummonohydrogenphosphatThis 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 1202:2005: ESIST EN 1202:2005
General information on dipotassium hydrogen orthophosphate.15 Bibliography.17
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 1202:2005
7758-11-4. 3.1.7 EINECS reference2)
231-834-5. 3.2 Commercial forms The dipotassium hydrogen 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 Dipotassium hydrogen 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. Liquid: The product is a clear solution.
1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. SIST EN 1202:2005
Not applicable. 3.3.6 Melting point For the solid product 1 340 °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 dipotassium hydrogen orthophosphate have alkaline reactions. The pH value of a solution containing a mass fraction of 1 %
is approximately 9 to 9,2.
3) 100 kPa = 1 bar. SIST EN 1202:2005
mass fraction of (53,5 ± 1,0) %. 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. SIST EN 1202:2005
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 di
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