SIST EN 12126:2013
(Main)Chemicals used for treatment of water intended for human consumption - Liquefied ammonia
Chemicals used for treatment of water intended for human consumption - Liquefied ammonia
This document is applicable to liquefied ammonia used for treatment of water intended for human consumption .It describes the characteristics and specifies the requirements of liquefied ammonia and refers to the corresponding analytical methods. It gives information for its use in water treatment. It also determines the rules relating to safe handling and use of liquefied ammonia.
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Ammoniak, flüssig
Diese Europäische Norm gilt für flüssiges Ammoniak zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von flüssigem Ammoniak und legt die Anforderungen sowie die entsprechenden Prüfverfahren für flüssiges Ammoniak fest. Sie enthält Angaben zu dessen Anwendung in der Wasseraufbereitung. Sie legt darüber hinaus Regeln für die sichere Handhabung und Verwendung von flüssigem Ammoniak fest (siehe Anhang B).
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Ammoniac liquéfié
La présente Norme européenne s'applique à l'ammoniac liquéfié utilisé pour le traitement de l'eau destinée à la consommation humaine. Elle décrit les caractéristiques de l'ammoniac liquéfié, en spécifie les exigences ainsi que les méthodes d'analyse correspondantes. Elle donne des informations pour son emploi dans le traitement de l'eau. Elle fixe également les règles relatives à la sécurité d'emploi et de manipulation de l’ammoniac liquéfié (voir Annexe B).
Kemikalije, ki se uporabljajo za pripravo pitne vode - Salmiak
Ta dokument obravnava salmiak, ki se uporablja za pripravo pitne vode. Opisuje značilnosti salmiaka ter določa zahteve in ustrezne preskusne metode zanj. Standard podaja informacije za uporabo salmiaka pri pripravi vode. Določa tudi pravila za varno ravnanje s salmiakom in njegovo uporabo.
General Information
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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 - SalmiakProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Ammoniak, flüssigProduits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Ammoniac liquéfiéChemicals used for treatment of water intended for human consumption - Liquefied ammonia71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 12126:2012SIST EN 12126:2013en,fr,de01-april-2013SIST EN 12126:2013SLOVENSKI
STANDARDSIST EN 12126:20051DGRPHãþD
SIST EN 12126:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12126
November 2012 ICS 71.100.80 Supersedes EN 12126:2005English Version
Chemicals used for treatment of water intended for human consumption - Liquefied ammonia
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Ammoniac liquéfié Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Ammoniak, flüssig This European Standard was approved by CEN on 23 September 2012.
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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12126:2012: ESIST EN 12126:2013
EN 12126:2012 (E) 2 Contents Page Foreword .3Introduction .41Scope .52Normative references .53Description .54Purity criteria .75Test methods .86Labelling – Transportation – Storage . 12Annex A (informative)
General information on liquefied ammonia . 16Annex B (normative)
General rules relating to safety . 17Bibliography . 18 SIST EN 12126:2013
EN 12126:2012 (E) 3 Foreword This document (EN 12126:2012) 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 May 2013, and conflicting national standards shall be withdrawn at the latest by May 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12126:2005. The significant technical differences between this edition and EN 12126:2005 are as follows: Modification of 6.2 on labelling, deletion of the reference to EU Directive 80/778/EEC of 15 July 1980 in order to take account of the latest Directive in force. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12126:2013
EN 12126:2012 (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 European Standard: a) this European Standard 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 European Standard 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 European Standard is subject to regulation or control by National Authorities.
SIST EN 12126:2013
EN 12126:2012 (E) 5 1 Scope This European Standard is applicable to liquefied ammonia used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of liquefied ammonia and refers to the corresponding analytical methods. It gives information for its use in water treatment. It also determines the rules relating to the safe handling and use of liquefied ammonia (see Annex B). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696) ISO 7103, Liquefied anhydrous ammonia for industrial use — Sampling — Taking a laboratory sample ISO 7105, Liquefied anhydrous ammonia for industrial use — Determination of water content — Karl Fischer Method ISO 7106, Liquefied anhydrous ammonia for industrial use — Determination of oil content — Gravimetric and infra-red spectrometric methods 3 Description 3.1 Identification 3.1.1 Chemical name Ammonia liquefied, anhydrous. 3.1.2 Synonym or common name Ammonia. 3.1.3 Relative molecular mass 17,03. 3.1.4 Empirical formula NH3. 3.1.5 Chemical formula
NH3. 3.1.6 CAS Registry Number 1)
7664-41-7.
1) Chemical Abstracts Service Registry Number. SIST EN 12126:2013
EN 12126:2012 (E) 6 3.1.7 EINECS reference 2)
231-635-3. 3.2 Commercial form
The product is available as liquefied gas. 3.3 Physical properties 3.3.1 Appearance and odour The product is colourless liquid with a characteristic pungent odour. 3.3.2 Density The density of the gas is 0,771 g/l at 101,3 kPa 3) and 0 °C. The density of the liquid is 0,682 g/ml at 101,3 kPa and -34 °C, and 0,61 g/ml at 850 kPa and 20 °C. 3.3.3 Solubility (in water) The solubility of the product in water is 900 g/l at 0 °C, 520 g/l at 20 °C, and 407 g/l at 30 °C. 3.3.4 Vapour pressure
The vapour pressure of the product is 400 kPa at 0 °C, 850 kPa at 20 °C and 2 035 kPa at 50 °C. 3.3.5 Boiling point at 100 kPa 3) The boiling point of the product is -33,4 °C at 101,3 kPa. 3.3.6 Melting point
The melting point of the product is -77,7 °C at 101,3 kPa. 3.3.7 Specific heat
The specific heat of the product is 4,61 kJ/(kg K) at 0 °C and 4,86 kJ/(kg K) at 40 °C. 3.3.8 Viscosity, dynamic The viscosity of the product is 0,254 mPa.s at 33 °C and 101,3 kPa. 3.3.9 Critical temperature
132,4 °C. 3.3.10 Critical pressure
11 450 kPa.
2) European Inventory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar. SIST EN 12126:2013
EN 12126:2012 (E) 7 3.3.11 Physical hardness
Not applicable. 3.4 Chemical properties Ammonia reacts violently with halogens, acids, acid halides, acid anhydrides and oxidising agents. It reacts with zinc, copper, tin and their alloys. Mixtures of volume fraction of 15 % to 30 % of ammonia with air are explosive. 4 Purity criteria
4.1 General This European Standard specifies the minimum purity requirements for liquefied ammonia 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. 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 product not stated in this product standard. 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 Liquefied ammonia shall not contain less than a mass fraction of 99,8 % of NH3. 4.3 Impurities and main by-products The product shall conform to the requirements specified in Table 1. Table 1 — Impurities Impurity Limit Water max Mass fraction 0,1 %
Permanent gases and methane max Volume fraction 0,1 %
Oil max
5 mg/kg
4.4 Chemical parameters The ch
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