1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15030:2012Chemicals used for treatmentof water intended for humanconsumption Silver salts forintermittent useCopyright European Committee for Standardization Provided by IH
2、S under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15030:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15030:2012. It supersedes BS EN 15030:2006 which is withdrawn.The UK participation in its
3、preparation was entrusted to Technical Committee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respons
4、ible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013ISBN 978 0 580 77777 6 ICS 13.060.20; 71.100.80 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of
5、 the Standards Policy and Strategy Committee on 28 February 2013.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS
6、 EN 15030:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15030 November 2012 ICS 71.100.80 Supersedes EN 15030:2006English Version Chemicals used for treatment of water intended for human consumption - Silver salts for intermittent use Produits chimiques utiliss pour le traitement de leau
7、destine la consommation humaine - Sels dargent pour usage intermittent Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Silbersalze fr den nicht systematischen Gebrauch This European Standard was approved by CEN on 23 September 2012. CEN members are bound to comply with the CEN/CE
8、NELEC 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
9、 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 o
10、fficial 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, Netherlan
11、ds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitat
12、ion in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15030:2012: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15030:2012EN 15030:20
13、12 (E) 2 Contents Page Foreword 31 Scope 52 Normative references 53 Description . 64 Purity criteria 85 Test methods 106 Labelling - transportation - storage . 12Annex A (informative) General information on silver salts . 16Annex B (normative) General rules relating to safety . 18Annex C (informativ
14、e) Environmental, health and safety precautions within the chemical laboratory . 19Bibliography 20Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15030:2012EN 15030:2012 (E
15、) 3 Foreword This document (EN 15030:2012) 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 late
16、st 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 pate
17、nt rights. This document supersedes EN 15030:2006. The significant technical differences between this edition and EN 15030:2006 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 f
18、orce. 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, Franc
19、e, 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. Copyright European Committee for Standardization Provided by IHS under license wi
20、th CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15030:2012EN 15030:2012 (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 E
21、uropean 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 char
22、acteristics of these products remain in force. NOTE 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 n
23、ational authorities. Water which is to be preserved with silver should fulfil the relevant legal requirements before the silver salt is added, in particular microbiological requirements. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduct
24、ion or networking permitted without license from IHS-,-,-BS EN 15030:2012EN 15030:2012 (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
25、their pipeline networks (small-size plants); water for the preparation of foodstuffs; 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 prolifer
26、ation of microorganisms in water during storage or in enclosed supply systems. This European Standard describes the characteristics of silver salts, specifies the requirements for silver salts and gives reference to the analytical methods. It gives information on their use in water treatment. It als
27、o determines the rules relating to safe handling and use of silver salts (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. Fo
28、r 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 ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696) EN ISO 5961, Wat
29、er quality Determination of cadmium by atomic absorption spectrometry (ISO 5961) EN ISO 10304-1, Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulphate (ISO 10304-1) EN ISO 11885,
30、 Water quality Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (ISO 11885) EN ISO 11969, Water quality Determination of arsenic Atomic absorption spectrometric method (hydride technique) (ISO 11969) EN ISO 12846, Water quality Determination of
31、 mercury Method using atomic absorption spectrometry (AAS) with and without enrichment (ISO 12846) 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
32、techniques Solid chemical products in the form of particles varying from powders to coarse lumps ISO 8288:1986, Water quality Determination of cobalt, nickel, copper, zinc, cadmium and lead Flame atomic absorption spectrometric methods ISO 9965, Water quality Determination of selenium Atomic absorpt
33、ion spectrometric method (hydride technique) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15030:2012EN 15030:2012 (E) 6 3 Description 3.1 Identification 3.1.1 Chemical n
34、ame 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)
35、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. Copyright European Committee for Standardization Provided by IHS under license with CENNot for
36、ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15030:2012EN 15030:2012 (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/cm3and the density of silver sulfate is 5,45 g/cm3. 3.3.3 Solubilit
37、y (in water) The solubility of silver nitrate is 2,16 g/l and the solubility 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
38、meting point of silver nitrate is 212 C and the melting point of silver sulfate is 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
39、 properties Silver nitrate in solution is almost neutral (the pH value of an aqueous solution at 100 g/l is approximately 6). 3) 100 kPa = 1 bar. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without licen
40、se from IHS-,-,-BS EN 15030:2012EN 15030:2012 (E) 8 Silver sulfate in solution is almost neutral (the pH value of an aqueous solution at 5 g/l is approximately 5 to 6). 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for silvers salts used for the prese
41、rvation 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. Us
42、ers 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 stat
43、ed 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 lead to significant quantities of impurities, by
44、-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-
45、products The products shall conform to the requirements specified in Table 1. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15030:2012EN 15030:2012 (E) 9 Table 1 Impuriti
46、es Impurity Limitmg/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)
47、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. Table 2 Chemical parameters Parameter Limitmg/kg of product Silver nitrate Silver sulfate Arsenic (As) max 5 5 C
48、admium (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. Copyright European Committee for Standardization Provided
