1、BS EN 902:2009ICS 13.060.20; 71.100.80NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDChemicals used fortreatment of waterintended for humanconsumption Hydrogen peroxideCopyright European Committee for Standardization Provided by IHS under license with CENNot fo
2、r ResaleNo reproduction or networking permitted without license from IHS-,-,-This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 June2009. BSI 2009ISBN 978 0 580 58597 5Amendments/corrigenda issued since publicationDate CommentsBS EN 902:2009Natio
3、nal forewordThis British Standard is the UK implementation of EN 902:2009. Itsupersedes BS EN 902:2000 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee c
4、an be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Copyright European Committee for Standar
5、dization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 902:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 902January 2009ICS 71.100.80 Supersedes EN 902:1999 English VersionChemicals used for treatment of water i
6、ntended for humanconsumption - Hydrogen peroxideProduits chimiques utiliss pour le traitement de leaudestine la consommation humaine - PeroxydedhydrogneProdukte zur Aufbereitung von Wasser fr denmenschlichen Gebrauch - WasserstoffperoxidThis European Standard was approved by CEN on 5 December 2008.C
7、EN 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 appl
8、ication to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre ha
9、s the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portu
10、gal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2009 CEN All rights of exploitation in any form and by any means res
11、ervedworldwide for CEN national Members.Ref. No. EN 902:2009: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 902:2009EN 902:2009 (E) 2 Contents Page Foreword 3 Introducti
12、on . 4 1 Scope 52 Normative references 53 Description . 53.1 Identification . 53.2 Commercial form . 53.3 Physical properties 63.4 Chemical properties 84 Purity criteria 94.1 General 94.2 Composition of commercial product . 94.3 Impurities and main by-products . 94.4 Chemical parameters 95 Test meth
13、ods 105.1 Sampling . 105.2 Analysis 106 Labelling - Transportation - Storage 146.1 Means of delivery . 146.2 Risk and safety labelling according to the EU Directives . 156.3 Transportation regulations and labelling 156.4 Marking . 166.5 Storage . 16Annex A (informative) General information on hydrog
14、en peroxide 17A.1 Origin 17A.2 Use 17A.3 Routine analyses . 18Annex B (normative) General rules relating to safety 19B.1 Rules for safe handling and use 19B.2 Emergency procedures . 19Annex C (normative) Determination of arsenic, antimony and selenium (atomic absorption spectrometry hydride techniqu
15、e) . 20C.1 General principle 20C.2 Interferences 20C.3 Reagents . 20C.4 Apparatus . 22C.5 Procedure . 23C.6 Calculation 25Bibliography 26Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from I
16、HS-,-,-BS EN 902:2009EN 902:2009 (E) 3 Foreword This document (EN 902:2009) 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 te
17、xt or by endorsement, at the latest by July 2009, and conflicting national standards shall be withdrawn at the latest by July 2009. 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 f
18、or identifying any or all such patent rights. This document supersedes EN 902:1999. The significant technical differences between this edition and EN 902:1999 are as follows: a) deletion of the reference to EU Directive 80/778/EEC of July 15,1980 in order to take into account the latest Directive in
19、 force (see 1); b) notification that the standard applies to pure chemical and not to mixtures with other chemicals; c) replacement of ISO 5666-1 by EN 1483; d) use of the changed classification and labelling (see 2). According to the CEN/CENELEC Internal Regulations, the national standards organiza
20、tions of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roman
21、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 902:2009EN 902:2009 (E) 4 Introduction In respect
22、 of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this Standard: 1) this 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; 2) it should be note
23、d 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 standard does not confer or imply acceptance or approval of the product in any of the Member Sta
24、tes of the EU or EFTA. The use of the product covered by this European Standard is subject to regulation or control by National Authorities. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license fr
25、om IHS-,-,-BS EN 902:2009EN 902:2009 (E) 5 1 Scope This document is applicable only to hydrogen peroxide and not to mixtures with other chemicals used for treatment of water intended for human consumption. It describes the characteristics of hydrogen peroxide and specifies the requirements and the c
26、orresponding test methods for hydrogen peroxide. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B). 2 Normative references The following referenced documents are indispensable for the application of this document. For dat
27、ed references, only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies. EN 1483, Water quality Determination of mercury Method using atomic absorption spectrometry EN ISO 3696, Water for analytical laboratory use Specifi
28、cation and test methods (ISO 3696:1987) ISO 3165, Sampling of chemical products for industrial use Safety in sampling ISO 6206, Chemical products for industrial use Sampling Vocabulary ISO 8288:1986, Water quality Determination of cobalt, nickel, copper, zinc, cadmium and lead Flame atomic absorptio
29、n spectrometric methods ISO 9174, Water quality Determination of chromium - Atomic absorption spectrometric methods 3 Description 3.1 Identification 3.1.1 Chemical name Hydrogen peroxide 3.1.2 Synonym or common name None 3.1.3 Relative molecular mass 34,02 3.1.4 Empirical formula H2O23.1.5 Chemical
30、formula H2O23.1.6 CAS Registry Number1) 7722-84-1 3.1.7 EINECS reference2) 231-765-0 3.2 Commercial form The product is supplied as an aqueous solution. 1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. Copyright European Committee for S
31、tandardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 902:2009EN 902:2009 (E) 6 3.3 Physical properties 3.3.1 Appearance and odour The product is colourless liquid, slightly pungent odour. 3.3.2 Density The densi
32、ty of hydrogen peroxide is given in Table 1. Table 1 Density Solution concentration Mass fraction in% Density g/ml at 20 C 20 1,07530 1,11435 1,132 50 1,19560 1,24170 1,289 3.3.3 Solubility in water The product is miscible with water in all proportions. 3.3.4 Vapour pressure The vapour pressure of h
33、ydrogen peroxide depending on concentration is given in Table 2. Table 2 Vapour pressure Solution concentration Mass fraction in % Vapour pressure kPa at 20 C 20 2,030 1,835 1,7 50 1,360 1,170 0,8 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo
34、 reproduction or networking permitted without license from IHS-,-,-BS EN 902:2009EN 902:2009 (E) 7 3.3.5 Boiling point at 100 kPa3) The boiling point of hydrogen peroxide depending on concentration is given in Table 3. Table 3 Boiling point Solution concentration Mass fraction in % Boiling point C a
35、t 100 kPa 20 103 30 10635 10850 114 60 11970 1253.3.6 Crystallization point The crystallisation point of hydrogen peroxide depending on concentration is given in Table 4. Table 4 Crystallization point Solution concentration Mass fraction in % Crystallization point C 20 - 14,630 25,735 - 32,550 5160
36、- 5570 373.3.7 Specific heat The specific heat of hydrogen peroxide depending on concentration is given in Table 5. Table 5 Specific heat Solution concentration Mass fraction in % Specific heat kJ/(kg.K) 20 3,82 at 20 C 50 3,32 at 20 C 100 2,63 at 25 C 3) 100 kPa = 1 bar. Copyright European Committe
37、e for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 902:2009EN 902:2009 (E) 8 3.3.8 Viscosity, dynamic The viscosity of hydrogen peroxide depending on concentration is given in Table 6. Table 6 Viscosity
38、 Solution concentration Mass fraction in % Viscosity MPa.s at 20 C 20 1,0430 1,0735 1,10 50 1,1760 1,2070 1,24 100 1,253.3.9 Critical temperature The critical temperature of pure hydrogen peroxide is 457 C. 3.3.10 Critical pressure The critical pressure of pure hydrogen peroxide is 21,7 mPa. 3.3.11
39、Physical hardness Not applicable. 3.4 Chemical properties Hydrogen peroxide is a weak acid. According to species in solution, it is an oxidizing agent (E =1,776 V) or a reducing agent (E = 0,682 V). Oxidizing agent: H2O2+ 2H+ 2e- 2H2O Reducing agent: H2O2- O2+ 2H+ 2e-NOTE 1 It can be activated by ul
40、traviolet light, ozone or metals to generate free radicals. NOTE 2 Singlet oxygen can be obtained by reaction of hydrogen peroxide with hypochlorite. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without l
41、icense from IHS-,-,-BS EN 902:2009EN 902:2009 (E) 9 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for hydrogen peroxide used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the product. De
42、pending 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 this product should check the national regulations in order to clarify whether it is of appropriate purit
43、y 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 chemicals parameters where these are likely t
44、o 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-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial product The
45、 hydrogen peroxide is usually available in concentrated solution with concentration within the range of mass fraction of 20 % to 70 %. Diluted products are also available. The concentration of hydrogen peroxide shall be equal to or greater than the manufacturer specified value. 4.3 Impurities and ma
46、in by-products Not applicable. 4.4 Chemical parameters The product shall conform to the requirements specified in Table 7. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 9
47、02:2009EN 902:2009 (E) 10 Table 7 Chemical parameters Parameter Limit in mg/kg of hydrogen peroxide (mass fraction 100 % ) Type 1 Type 2 Arsenic (As) max. 0,5 1 Cadmium (Cd) max. 0,5 1 Chromium (Cr) max. 0,5 1 Mercury (Hg) max. 0,5 1 Nickel (Ni) max. 1 5 Lead (Pb) max. 0,5 1 Antimony (Sb) max. 0,5 1
48、 Selenium (Se) max. 0,5 1 NOTE Cyanide which does not exist in a strong oxidizing medium such as hydrogen peroxide is not a relevant chemical parameter. Pesticides and polycyclic aromatic hydrocarbons are not by-products of the manufacturing process. For parametric values of chemical parameters in drinking water, see 1. 5 Test methods 5.1 Sampling Observe the ge
