SIST EN 15030:2006
(Main)Chemicals used for treatment of water intended for human consumption - Silver salts for intermittent use
Chemicals used for treatment of water intended for human consumption - Silver salts for intermittent use
This European Standard is applicable to silver nitrate and silver sulfate for the preservation of water intended for human consumption in intermittent applications in water supply plants, including their pipeline networks (small-size plants); water for the preparation of foodstuffs; and other water which is stored in packaged form or kept in enclosed systems (for example, water supply systems in land-, water- and airborne vehicles).
The purpose of adding silver salts is to prevent the detrimental proliferation of micro-organisms in water during storage or in enclosed supply systems.
This European Standard describes the characteristics of silver salts and specifies the requirements for silver salts and gives reference to the analytical methods. It gives information on their use in water treatment. It also determines the rules relating to safe handling and use of silver salts (see Annex B).
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Silbersalze für den nicht systematischen Gebrauch
Diese Europäische Norm gilt für Silbernitrat und Silbersulfat zur Konservierung von Wasser für den
menschlichen Gebrauch bei nicht systematischen Anwendungen in Wasserversorgungsanlagen einschließlich
deren Leitungsnetzen (Kleinanlagen); sie gilt weiterhin für die Konservierung von Wasser für die
Lebensmittelzubereitung sowie von sonstigem Wasser, das in abgepackter Form gelagert wird oder in
geschlossenen Systemen (wie z. B. Wasserversorgungssysteme von Land-, Wasser- und Luftfahrzeugen)
geführt wird.
Durch den Zusatz von Silbersalz soll eine nachteilige Vermehrung von Mikroorganismen im Wasser während
der Lagerung bzw. innerhalb der geschlossenen Versorgungssysteme verhindert werden.
Diese Europäische Norm beschreibt die Eigenschaften von Silbersalzen, legt die Anforderungen an
Silbersalze fest und verweist auf die entsprechenden Analysenverfahren. Sie gibt Informationen zur
Verwendung von Silbersalzen in der Wasseraufbereitung. Sie legt darüber hinaus Regeln für die sichere
Handhabung und Benutzung von Silbersalzen fest (siehe Anhang B).
Produits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Sels d'argent pour usage intermittent
La présente Norme européenne s’applique au nitrate d’argent et au sulfate d’argent pour la conservation de
l’eau destinée a la consommation humaine pour usage intermittent dans les usines d'alimentation en eau, y
compris leur réseau de canalisation, d’un débit annuel maximum de 1 000 m3 (usines de petite taille), de l’eau
destinée a la préparation des denrées alimentaires et de l’eau stockée sous emballage ou conservée en
circuit fermé (exemple : les systemes de distribution d’eau dans les véhicules terrestres, nautiques et aériens).
L'ajout des sels d’argent a pour but d’empecher la prolifération préjudiciable de micro-organismes dans l’eau
pendant le stockage ou dans les circuits de distribution fermés.
Cette Norme européenne décrit les caractéristiques des sels d’argent, spécifie les exigences des sels
d'argent et donne les méthodes d'analyse correspondantes. Elle donne des informations pour leur emploi
dans le traitement de l’eau. Elle fixe également les regles relatives a la sécurité d’emploi et de manipulation
des sels d’argent (voir Annexe B).
Kemikalije, ki se uporabljajo za pripravo pitne vode – Srebrove soli za uporabo z občasnimi prekinitvami
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Silbersalze für den nicht systematischen GebrauchProduits chimiques utilisés pour le traitement de l'eau destinée a la consommation humaine - Sels d'argent pour usage intermittentChemicals used for treatment of water intended for human consumption - Silver salts for intermittent use71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 15030:2006SIST EN 15030:2006sl,en,fr01-julij-2006SIST EN 15030:2006SLOVENSKI
STANDARD
SIST EN 15030:2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15030March 2006ICS 71.100.80 English VersionChemicals used for treatment of water intended for humanconsumption - Silver salts for intermittent useProduits chimiques utilisés pour le traitement de l'eaudestinée à la consommation humaine - Sels d'argent pourusage intermittentProdukte zur Aufbereitung von Wasser für denmenschlichen Gebrauch - Silbersalze für den nichtsystematischen GebrauchThis European Standard was approved by CEN on 3 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15030:2006: ESIST EN 15030:2006
EN 15030:2006 (E) 2 Contents Page Foreword.3 1 Scope.5 2 Normative references.5 3 Description.6 4 Purity criteria.8 5 Test methods.9 6 Labelling - transportation - storage.11 Annex A (informative)
General information on silver salts.14 Annex B (normative)
General rules relating to safety.16 Annex C (informative)
Environmental, health and safety precautions within chemical laboratory.17 Bibliography.18
SIST EN 15030:2006
EN 15030:2006 (E) 3 Foreword This European Standard (EN 15030:2006) 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 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
SIST EN 15030:2006
EN 15030:2006 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the products covered by this European Standard: a) this European Standard provides no information as to whether the products 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 these products remain in force. NOTE 1 Conformity with this European Standard does not confer or imply acceptance or approval of the products in any of the member states of the EU or EFTA. The use of the products covered by this European Standard is subject to regulation or control by national authorities. NOTE 2 Water which is to be preserved with silver should fulfil the relevant legal requirements before the silver salt is added, in particular microbiological requirements.
SIST EN 15030:2006
EN 15030:2006 (E) 5 1 Scope This European Standard is applicable to silver nitrate and silver sulfate for the preservation of water intended for human consumption in intermittent applications in water supply plants, including their pipeline networks (small-size plants); water for the preparation of foodstuffs; and other water which is stored in packaged form or kept in enclosed systems (for example, water supply systems in land, water and airborne vehicles). The purpose of adding silver salts is to prevent the detrimental proliferation of microorganisms in water during storage or in enclosed supply systems. This European Standard describes the characteristics of silver salts and specifies the requirements for silver salts and gives reference to the analytical methods. It gives information on their use in water treatment. It also determines the rules relating to safe handling and use of silver salts (see Annex B). 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1233, Water quality — Determination of chromium — Atomic absorption spectrometric methods 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 10304-1, Water quality — Determination of dissolved fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate ions, using liquid chromatography of ions — Part 1: Method for water with low contamination (ISO 10304-1:1992) 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 3165, Sampling of chemical products for industrial use — Safety in sampling ISO 6206, Chemical products for industrial use — Sampling — Vocabulary 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 9965, Water quality — Determination of selenium — Atomic absorption spectrometric method (hydride technique) SIST EN 15030:2006
EN 15030:2006 (E) 6 3 Description 3.1 Identification 3.1.1 Chemical name a) Silver nitrate; b) Silver sulfate. 3.1.2 Synonym or common name None 3.1.3 Relative molecular mass a) 169,87; b) 311,97. 3.1.4 Empirical formula a) AgNO3; b) Ag2SO4. 3.1.5 Chemical formula a) AgNO3; b) Ag2SO4. 3.1.6 CAS Registry Number 1) a) 7761-88-8 b) 10294-26-5 3.1.7 EINECS reference 2) a) 231-853-9 b) 233-653-7 3.2 Commercial forms The products are available in solid forms.
1) Chemical Abstracts Service Registry Number 2) European Inventory of Existing Commercial Chemical Substances SIST EN 15030:2006
EN 15030:2006 (E) 7 3.3 Physical properties 3.3.1 Appearance The products are a powder. 3.3.2 Density The density of silver nitrate is 4,35 g/cm3 and of silver sulfate is 5,45 g/cm3. 3.3.3 Solubility (in water) The solubility of silver nitrate is 2,16 g/l and of silver sulfate is 8 g/l. 3.3.4 Vapour pressure at 20 °C Not applicable 3.3.5 Boiling point at 100 kPa 3) For silver nitrate at 444 °C (decomposition). For silver sulfate at 1 085 °C (decomposition). 3.3.6 Melting point The meting point of silver nitrate is 212 °C and of silver sulfate 652 °C. 3.3.7 Specific heat Not known 3.3.8 Viscosity (dynamic) Not applicable 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 Silver nitrate in solution is almost neutral (the pH value of an aqueous solution at 100 g/l is approximately 6). Silver sulfate in solution is almost neutral (the pH value of an aqueous solution at 5 g/l is approximately 5 to 6).
3) 100 kPa = 1 bar. SIST EN 15030:2006
EN 15030:2006 (E) 8 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for silvers salts used for the preservation of water intended for human consumption. Limits are given for impurities commonly present in the products. 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 the products should check the national regulations in order to clarify whether it is of appropriate purity for the preservation of water intended for human consumption, taking into account water quality, required dosage, contents of other impurities and additives used in the products 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 in the production process or raw materials lead to significant quantities of impurities, by-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial products The content of silver nitrate shall not be less than a mass fraction of 99,9 %. The content of silver sulfate shall not be less than a mass fraction of 99,9 %. 4.3 Impurities and main by-products The products shall conform to the requirements specified in Table 1. Table 1 —Impurities Impurity Limit mg/kg of product
Silver nitrate Silver sulfate Chloride (Cl-) max. < 1 N.A. Copper (Cu) max. 0,056 < 100 Gold (Au) max. 0,000 2 N.A. Iridium (Ir) max. < 0,000 4 N.A. Iron (Fe) max. 0,255 < 50 Nitrite (NO2--) max. 0,5 N.A. Palladium (Pd) max. < 0,000 1 N.A. Platinum (Pt) max. 0,002 9 N.A. Rhodium (Rh) max. < 0,000 1 N.A. Ruthenium (Ru) max. 0,000 7 N.A. Sulfate max. < 5 N.A. NOTE N.A : Not applicable 4.4 Chemical parameters The products shall conform to the requirements specified in Table 2. SIST EN 15030:2006
EN 15030:2006 (E) 9 Table 2 — Chemical parameters Parameter Limit mg/kg of product
Silver nitrate Silver sulfate Arsenic (As) max. 5 5 Cadmium (Cd) max. 10 10 Chromium (Cr) max. 10 10 Mercury (Hg) max. 1 1 Nickel (Ni) max. 10 10 Lead (Pb) max. 10 10 Antimony (Sb) max. 10 10 Selenium (Se) max. 10 10 NOTE Cyanide is not relevant, since the materials used in the production process are free from it. Pesticides and polycyclic aromatic hydrocarbons are not by-products of the production process. For parametric values of silver salts on trace metal content in drinking water, see [1]. 5 Test methods 5.1 Sampling Observe the general recommendations of ISO 3165 and take into account ISO 6206. Prepare the laboratory sample(s) required by the relevant procedure described in ISO 8213. 5.2 Analyses 5.2.1 Silver content (main product) The silver content shall be determined in accordance with EN ISO 11885. 5.2.2 Impurities 5.2.2.1 Sulfate The sulfate (SO42-) content shall be determined in accordance with EN ISO 10304-1. NOTE An alternative method can be used as the following EN ISO 10304-2 and this should be notified to the user. 5.2.2.2 Chloride The chloride (Cl-) content shall be determined in accordance with EN ISO 10304-1 5.2.2.3 Metallic impurities The metallic impurities (copper, gold, iridium, iron, palladium, platinum, rhodium and ruthenium) shall be determined in accordance with EN ISO 11885. SIST EN 15030:2006
EN 15030:2006 (E) 10 5.2.2.4 Nitrite The nitrite (NO2-) content shall be determined in accordance with EN ISO 10304
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