1、BS EN 902:2016Chemicals used for treatmentof water intended for humanconsumption HydrogenperoxideBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 902:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 902:2016. It supersed
2、es BS EN 902:2009 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee CII/59, Chemicals for drinking water treatment.A list of organizations represented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 incl
3、ude all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 86577 0 ICS 13.060.20; 71.100.80 Compliance with a British Standard cannot confer immunity from legal obliga
4、tions.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 902:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 902 May 2016 ICS 71.100.80 Superse
5、des EN 902:2009English Version Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide Produits chimiques utiliss pour le traitement de leau destine la consommation humaine - Peroxyde dhydrogne Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Wasse
6、rstoffperoxid This European Standard was approved by CEN on 18 March 2016. 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 bibliog
7、raphical 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 responsib
8、ility 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 Republi
9、c of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISA
10、TION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 902:2016 EBS EN 902:2016EN 902:2016 (E) 2 Contents Page European foreword . 4
11、 Introduction 5 1 Scope 6 2 Normative references 6 3 Description 6 3.1 Identification 6 3.1.1 Chemical name . 6 3.1.2 Synonym or common name . 6 3.1.3 Relative molecular mass . 6 3.1.4 Empirical formula . 6 3.1.5 Chemical formula 6 3.1.6 CAS Registry Number . 6 3.1.7 EINECS reference . 7 3.2 Commerc
12、ial form . 7 3.3 Physical properties . 7 3.3.1 Appearance and odour 7 3.3.2 Density 7 3.3.3 Solubility in water . 7 3.3.4 Vapour pressure 7 3.3.5 Boiling point at 100 kPa . 7 3.3.6 Crystallization point . 8 3.3.7 Specific heat 8 3.3.8 Viscosity, dynamic 8 3.3.9 Critical temperature 9 3.3.10 Critical
13、 pressure 9 3.3.11 Physical hardness . 9 3.4 Chemical properties . 9 4 Purity criteria . 9 4.1 General 9 4.2 Composition of commercial product . 10 4.3 Impurities and main by-products 10 4.4 Chemical parameters 10 5 Test methods . 10 5.1 Sampling 10 5.2 Analysis 10 5.2.1 Determination of hydrogen pe
14、roxide content (main product) . 10 5.2.2 Chemical parameters 13 6 Labelling - Transportation - Storage . 15 6.1 Means of delivery . 15 6.2 Labelling according to the EU Legislation . 15 6.3 Transportation regulations and labelling . 19 6.4 Marking 19 6.5 Storage . 19 6.5.1 Containers . 19 BS EN 902:
15、2016EN 902:2016 (E) 3 6.5.2 Long term stability . 19 6.5.3 Storage incompatibilities . 20 Annex A (informative) General information on hydrogen peroxide 21 A.1 Origin 21 A.1.1 Raw materials 21 A.1.2 Manufacturing process . 21 A.2 Use 21 A.2.1 Function . 21 A.2.2 Form in which it is used 21 A.2.3 Tre
16、atment dose . 21 A.2.4 Means of application 21 A.2.5 Secondary effects 21 A.2.6 Removal of excess product 21 A.3 Routine analyses . 22 A.3.1 Determination of chemical parameters . 22 Annex B (normative) General rules relating to safety 23 B.1 Rules for safe handling and use . 23 B.2 Emergency proced
17、ures . 23 B.2.1 First aid 23 B.2.2 Spillage . 23 B.2.3 Fire . 23 Annex C (normative) Determination of arsenic, antimony and selenium (atomic absorption spectrometry hydride technique) 24 C.1 Safety precautions 24 C.2 General principle 24 C.3 Interferences 24 C.4 Reagents . 24 C.5 Apparatus 26 C.6 Pr
18、ocedure 28 C.6.1 Preparation of the apparatus . 28 C.6.2 Preparation of calibration solutions . 29 C.6.3 Preparation of test solutions and standard solutions . 29 C.6.4 Determination of arsenic with sodium borohydride . 29 C.6.5 Determination of selenium with sodium borohydride . 29 C.6.6 Determinat
19、ion of antimony with sodium borohydride 30 C.7 Calculation. 30 Bibliography . 31 BS EN 902:2016EN 902:2016 (E) 4 European foreword This document (EN 902:2016) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This European Standard shall b
20、e given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is drawn to the possibility that some of the elements of this docum
21、ent 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 902:2009. Significant technical differences between this edition and EN 902:2009 are as follows: a) deletion of the reference to EU Dir
22、ective 67/548/EEC of June 27,1967 in order to take into account the latest Directive in force (see 1); b) use of the changed classification and labelling (see 3). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
23、 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, Slo
24、vakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 902:2016EN 902:2016 (E) 5 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: 1) this European Standard
25、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 noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of thi
26、s product remain in force. NOTE 1 Conformity with this 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. NOTE 2 T
27、his product is a biocide and needs to comply with the relevant legislation in force. In the European Union, at the time of publication, this legislation is REGULATION (EU) No 528/2012 1. BS EN 902:2016EN 902:2016 (E) 6 1 Scope This European Standard is applicable only to hydrogen peroxide and not to
28、 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 corresponding test methods for hydrogen peroxide. It gives information on its use in water treatment. It also determ
29、ines the rules relating to safe handling and use (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, th
30、e latest edition of the referenced document (including any amendments) applies. EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696) EN ISO 12846, Water quality Determination of mercury Method using atomic absorption spectrometry (AAS) with and without enrichmen
31、t (ISO 12846) ISO 3165, Sampling of chemical products for industrial use Safety in sampling ISO 6206, Chemical products for industrial use Sampling Vocabulary ISO 8288, Water quality Determination of cobalt, nickel, copper, zinc, cadmium and lead Flame atomic absorption spectrometric methods ISO 917
32、4, 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 H2O2. 3.1.5 Chemical formula H-O-O-H. 3.1.6 CAS R
33、egistry Number1)7722-84-1. 1) Chemical Abstracts Service Registry Number. BS EN 902:2016EN 902:2016 (E) 7 3.1.7 EINECS reference2)231-765-0. 3.2 Commercial form The product is supplied as an aqueous solution. 3.3 Physical properties 3.3.1 Appearance and odour The product is colourless liquid, slight
34、ly pungent odour. 3.3.2 Density The density of hydrogen peroxide is given in Table 1. Table 1 Density Solution concentration Mass fraction in% Density g/ml at 20 C 20 1,075 30 1,114 35 1,132 50 1,195 60 1,241 70 1,289 3.3.3 Solubility in water The product is miscible with water in all proportions. 3
35、.3.4 Vapour pressure The vapour pressure of hydrogen 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 2,0 30 1,8 35 1,7 50 1,3 60 1,1 70 0,8 3.3.5 Boiling point at 100 kPa3)The boiling point of h
36、ydrogen peroxide depending on concentration is given in Table 3. 2) European Inventory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar. BS EN 902:2016EN 902:2016 (E) 8 Table 3 Boiling point Solution concentration Mass fraction in % Boiling point C at 100 kPa 20 103 30 106 35 108 50 11
37、4 60 119 70 125 3.3.6 Crystallization point The crystallization 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 14,6 30 25,7 35 32,5 50 51 60 55 70 37 3.3.7 Specific heat The
38、 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 3.3.8 Viscosity, dynamic The viscosity of hydrogen peroxide depending on concen
39、tration is given in Table 6. BS EN 902:2016EN 902:2016 (E) 9 Table 6 Viscosity Solution concentration Mass fraction in % Viscosity MPa.s at 20 C 20 1,04 30 1,07 35 1,10 50 1,17 60 1,20 70 1,24 100 1,25 3.3.9 Critical temperature The critical temperature of pure hydrogen peroxide is 457 C. 3.3.10 Cri
40、tical pressure The critical pressure of pure hydrogen peroxide is 21,7 mPa. 3.3.11 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:
41、H2O2+ 2H+ 2e- 2H2O Reducing agent: H2O2- O2+ 2H+ 2e-NOTE 1 It can be activated by ultraviolet light, ozone or metals to generate free radicals. NOTE 2 Singlet oxygen can be obtained by reaction of hydrogen peroxide with hypochlorite ion. 4 Purity criteria 4.1 General This European Standard specifies
42、 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. Depending on the raw material and the manufacturing process other impurities may be present and, if so, this shall b
43、e 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, conten
44、ts of other impurities and additives used in the product not stated in this product standard. BS EN 902:2016EN 902:2016 (E) 10 Limits have been given for impurities and chemicals parameters where these are likely to be present in significant quantities from the current production process and raw mat
45、erials. 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 hydrogen peroxide is usually available in concentrated solution with concentration wi
46、thin 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 main by-products Not applicable. 4.4 Chemical parameters The product shall conform to th
47、e requirements specified in Table 7. Table 7 Chemical parameters Parameter Limit in mg/kg of product (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 d
49、rinking water, see 2. 5 Test methods 5.1 Sampling Observe the general recommendations of ISO 3165 and take ISO 6206 into account. 5.2 Analysis 5.2.1 Determination of hydrogen peroxide content (main product) 5.2.1.1 Principle Titration of a test portion of hydrogen peroxide in acidic medium with a potassium permanganate standard volumetric solution. BS EN 902:2016EN 902:2016 (E) 11 5.2.1.2 Reagents All reagents shall be of a recognized analytical grade and the water used shall conform to grade 3 in
