1、September 2014 Translation by DIN-Sprachendienst.English price group 16No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).
2、ICS 71.100.80!%;(:“2240523www.din.deDDIN EN 900Chemicals used for treatment of water intended for humanconsumption Calcium hypochlorite;English version EN 900:2014,English translation of DIN EN 900:2014-09Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch Calciumhypochlorit;Englische
3、Fassung EN 900:2014,Englische bersetzung von DIN EN 900:2014-09Produits chimiques utiliss pour le traitement de leau destine la consommationhumaine Hypochlorite de calcium;Version anglaise EN 900:2014,Traduction anglaise de DIN EN 900:2014-09SupersedesDIN EN 900:2008-01www.beuth.deDocument comprises
4、 34 pagesIn case of doubt, the German-language original shall be considered authoritative.09.14 DIN EN 900:2014-09 2 A comma is used as the decimal marker. National foreword This document (EN 900:2014) has been prepared by Technical Committee CEN/TC 164 “Water supply” (Secretariat: AFNOR, France). T
5、he responsible German body involved in its preparation was the DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice), Working Committee NA 119-04-02 AA Wasseraufbereitung. Users of this standard are advised of the reservations stated in the Introduction of the European Standard an
6、d should note that national regulations exist in Germany dealing with water for human consumption, in particular the Trinkwasserverordnung (TrinkwV 2001) (German Drinking Water Ordinance). The DIN Standards corresponding to the International Standards referred to in this document are as follows, whe
7、reby EN ISO Standards are only listed below if these have not been published as DIN EN ISO Standards with the same number: EN ISO 3696 DIN ISO 3696 ISO 9174 DIN EN 1233 Amendments This standard differs from DIN EN 900:2008-01 as follows: a) the maximum sodium chloride content and its relevant method
8、 of determination have been deleted; b) specifications concerning hazard and safety related symbols have been brought in line with the “Globally Harmonized System of Classification, Labelling and Packaging of Chemicals (GHS)” (Global harmonisiertes System zur Einstufung und Kennzeichnung von Chemika
9、lien); c) Subclause 6.3 “Transportation regulations and labelling” has been extended to include UN Numbers 3485 and 3487; d) normative references have been updated. Previous editions DIN EN 900: 2000-03, 2008-01 DIN EN 900:2014-09 3 National Annex NA (informative) Bibliography DIN ISO 3696, Water fo
10、r analytical laboratory use Specification and test methods DIN EN 1233, Water quality Determination of chromium Atomic absorption spectrometric methods Verordnung ber die Qualitt von Wasser fr den menschlichen Gebrauch (Trinkwasserverordnung TrinkwV 2001) (German Drinking Water Ordinance), as of 02
11、August 2013 (BGBI. (German Federal Law Gazette) I, 2013, no. 46, p. 2977-3004), as amended by Article 4, Paragraph 22 of the Act of 07 August 2013 (BGBI. I, no. 48, p. 3154-3211)*)*)Obtainable from: Bundesministerium der Justiz (German Federal Ministry of Justice) (Internet: http:/www.gesetze-im-int
12、ernet.de). DIN EN 900:2014-09 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 900 July 2014 ICS 71.100.80 Supersedes EN 900:2007English Version Chemicals used for treatment of water intended for human consumption - Calcium hypochlorite Produits chimiques utili
13、ss pour le traitement de leau destine la consommation humaine - Hypochlorite de calcium Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Calciumhypochlorit This European Standard was approved by CEN on 22 May 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regu
14、lations 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 memb
15、er. 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. C
16、EN 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,
17、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in
18、any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 900:2014 EEN 900:2014 (E) 2 Contents Page Foreword 4 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 molec
19、ular mass .6 3.1.4 Empirical formula.6 3.1.5 Chemical formula .7 3.1.6 CAS Registry Number ).7 3.1.7 EINECS reference )7 3.2 Commercial form .7 3.3 Physical properties 7 3.3.1 Appearance 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 Mel
20、ting point .7 3.3.7 Specific heat .7 3.3.8 Viscosity, dynamic.8 3.3.9 Critical temperature .8 3.3.10 Critical pressure.8 3.3.11 Physical hardness .8 3.4 Chemical properties 8 4 Purity criteria 8 4.1 General 8 4.2 Composition of commercial product .8 4.3 Impurities and main by-products .9 4.4 Chemica
21、l parameters 9 5 Test methods 9 5.1 Sampling .9 5.2 Analysis . 10 5.2.1 Determination of calcium hypochlorite content (main product) 10 5.2.2 Dissolution quality (available chlorine after 1 min) . 12 5.2.3 Impurities . 13 5.2.4 Chemical parameters . 14 6 Labelling - Transportation - Storage . 16 6.1
22、 Means of delivery 16 6.2 Labelling according to the EU legislation )17 6.3 Transportation regulations and labelling . 17 6.4 Marking 18 6.5 Storage . 18 DIN EN 900:2014-09 EN 900:2014 (E) 3 6.5.1 General . 18 6.5.2 Long term stability 18 6.5.3 Storage incompatibilities 19 Annex A (informative) Gene
23、ral information on calcium hypochlorite 20 A.1 Origin 20 A.1.1 Raw materials 20 A.1.2 Manufacturing process . 20 A.2 Use 20 A.2.1 Function 20 A.2.2 Form in which it is used 20 A.2.3 Treatment dose 20 A.2.4 Means of application . 20 A.2.5 Secondary effects 20 A.2.6 Removal of excess product 21 Annex
24、B (normative) General rules relating to safety 22 B.1 Rules for safe handling and use 22 B.2 Emergency procedures . 22 B.2.1 First aid . 22 B.2.2 Spillage . 22 B.2.3 Fire 22 Annex C (normative) Determination of arsenic, antimony and selenium (atomic absorption spectrometry hydride technique) 23 C.1
25、General principle . 23 C.2 Interferences 23 C.3 Reagents. 23 C.4 Apparatus . 25 C.4.1 General . 25 C.5 Procedure . 27 C.5.1 Preparation of the apparatus . 27 C.5.2 Preparation of calibration solutions 27 C.5.3 Preparation of test solutions and standard solutions . 27 C.5.4 Determination of arsenic w
26、ith sodium borohydride 27 C.5.5 Determination of selenium with sodium borohydride . 28 C.5.6 Determination of antimony with sodium borohydride . 28 C.6 Calculation . 28 C.7 Repeatability limit 28 Annex D (informative) Environmental, health and safety precautions within chemical laboratory . 29 Bibli
27、ography 30 DIN EN 900:2014-09 EN 900:2014 (E) 4 Foreword This document (EN 900:2014) 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 ide
28、ntical text or by endorsement, at the latest by January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015. 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 hel
29、d responsible for identifying any or all such patent rights. This document supersedes EN 900:2007. Significant technical differences between this edition and EN 900:2007 are as follows: a) deletion of the maximum sodium chloride content and of its relevant method of determination; b) replacement of
30、warning and safety precautions notes by labelling according to REGULATION (EC) No 1272/2008. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,
31、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 Kin
32、gdom. DIN EN 900:2014-09 EN 900:2014 (E) 5 Introduction With respect to 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 wi
33、thout 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 1 Conformity with this European
34、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 This product is a biocide and needs to comply with the
35、 relevant legislation in force. In the European Union, at the time of publication, this legislation is Directive 98/8/EC 1). DIN EN 900:2014-09 EN 900:2014 (E) 6 1 Scope This European Standard is applicable to calcium hypochlorite used for the treatment of water intended for human consumption. It de
36、scribes the characteristics of calcium hypochlorite and specifies the requirements and the corresponding test methods for calcium hypochlorite. It provides information on its use in water treatment. It also determines the rules relating to safe handling and use of calcium hypochlorite (see Annex B).
37、 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 amen
38、dments) applies. EN ISO 3696, Water for analytical laboratory use - Specification and test methods (ISO 3696) EN ISO 12846:2012, Water quality - Determination of mercury - Method using atomic absorption spectrometry (AAS) with and without enrichment (ISO 12846:2012) ISO 3165, Sampling of chemical pr
39、oducts 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 Determinati
40、on of cobalt, nickel, copper, zinc, cadmium and lead Flame atomic absorption spectrometric methods ISO 9174, Water quality Determination of chromium Atomic absorption spectrometric methods 3 Description 3.1 Identification 3.1.1 Chemical name Calcium hypochlorite. 3.1.2 Synonym or common name None. 3
41、.1.3 Relative molecular mass 142,99. 3.1.4 Empirical formula Ca(ClO)2. DIN EN 900:2014-09 EN 900:2014 (E) 7 3.1.5 Chemical formula Ca(ClO)2. 3.1.6 CAS Registry Number 1)7778-54-3. 3.1.7 EINECS reference 2)231-908-7. 3.2 Commercial form The product is available as a granular solid or in the form of t
42、ablets. 3.3 Physical properties 3.3.1 Appearance The product is white free-flowing granules or white tablets. 3.3.2 Density The bulk density is approximately 0,8 g/cm3to 1 g/cm3for loose granular material and 1,2 g/cm3to 1,3 g/cm3for tablets, while the density of one tablet is approximately 1,7 g/cm
43、3to 1,9 g/cm3. 3.3.3 Solubility in water The solubility is 180 g/l at 25 C. 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa 3)Not applicable. 3.3.6 Melting point Not applicable as the product decomposes at 177 C. 3.3.7 Specific heat Not known. 1) Chemical Abstracts Service Regis
44、try Number. 2) European Inventory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar. DIN EN 900:2014-09 EN 900:2014 (E) 8 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.
45、 3.4 Chemical properties Solutions of calcium hypochlorite are alkaline. The pH value of a solution of concentration 10 g/l is about 11,5 at 25 C. Calcium hypochlorite is a strong oxidant and chlorination agent. It reacts with acids or acidic salts to form chlorine, and can form explosive nitrogen c
46、hlorides with ammonia and ammonia compounds. In the presence of inflammable substances, it causes fires and explosions of organic compounds, oxidation reactions occur with the release of heat and of moisture, and it is also highly corrosive to most metals. 4 Purity criteria 4.1 General This European
47、 Standard specifies the minimum purity requirements for calcium hypochlorite 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 an
48、d if so, then the user, and when necessary the relevant authorities, shall be notified. Users of the product should check the national regulations 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 si
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