1、March 2014 Translation by DIN-Sprachendienst.English price group 12No 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).ICS
2、71.100.80!%,v“2098392www.din.deDDIN EN 936Chemicals used for treatment of water intended for humanconsumption Carbon dioxide;English version EN 936:2013,English translation of DIN EN 936:2014-03Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch Kohlenstoffdioxid;Englische Fassung EN 9
3、36:2013,Englische bersetzung von DIN EN 936:2014-03Produits chimiques utiliss pour le traitement de leau destine la consommationhumaine Dioxyde de carbone;Version anglaise EN 936:2013,Traduction anglaise de DIN EN 936:2014-03SupersedesDIN EN 936:2006-10www.beuth.deDocument comprises 18 pagesIn case
4、of doubt, the German-language original shall be considered authoritative.02.14 DIN EN 936:2014-03 2 A comma is used as the decimal marker. National foreword This document (EN 936:2013) has been prepared by Technical Committee CEN/TC 164 “Water supply” (Secretariat: AFNOR, France). The responsible Ge
5、rman body involved in its preparation was the Normenausschuss Wasserwesen (Water Practice Standards Committee), 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 and should note that nation
6、al regulations exist in Germany dealing with water for human consumption, in particular the Trinkwasserverordnung (TrinkwV 2001) (German Drinking Water Ordinance). The equipment listed at the end of paragraph 1 of Subclause 4.2.1 represents examples of suitable commercially available products only.
7、This is solely intended as information for users of this standard and in no way represents DINs endorsement of the products named. Amendments This standard differs from DIN EN 936:2006-10 as follows: a) Subclause 2.2 “Commercial form” has been rendered more precise; b) the minimum carbon dioxide con
8、tent has been increased to 99,9 %; c) requirements for by-products have been revised and moved from the informative annex to the normative part of the standard; d) specifications concerning hazard and safety related symbols have been brought in line with the “Globally Harmonized System of Classifica
9、tion, Labelling and Packaging of Chemicals (GHS)” (Global harmonisiertes System zur Einstufung und Kennzeichnung von Chemikalien); e) specifications relating to liquid carbon dioxide given in Subclause 5.3 “Transportation regulations and labelling” have been brought in line with the current regulati
10、ons; f) storage requirements have been revised; g) specifications relating to raw materials and first aid measures have been modified; h) the Bibliography has been updated. Previous editions DIN EN 936: 1998-01, 2006-10 DIN EN 936:2014-03 3 National Annex NA (informative) Bibliography Verordnung ber
11、 die Qualitt von Wasser fr den menschlichen Gebrauch (Trinkwasserverordnung TrinkwV 2001) (German Drinking Water Ordinance), as of 02 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
12、. 3154-3211)*)*)Obtainable from: Bundesministerium der Justiz (German Federal Ministry of Justice) (Internet: http:/www.gesetze-im-internet.de). DIN EN 936:2014-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 936 December 2013 ICS 71.100.80 Supersedes EN 93
13、6:2006 English Version Chemicals used for treatment of water intended for human consumption Carbon dioxide Produits chimiques utiliss pour le traitement de leau destine la consommation humaine Dioxyde de carbone Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch Kohlenstoffdioxid This
14、 European Standard was approved by CEN on 26 October 2013. 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 bibliographical referen
15、ces 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 responsibility of a CEN m
16、ember 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 Republic of Macedonia,
17、France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHE
18、S KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 936:2013: E ContentsPageForeword 3 Introduction . 4 1 Scope 5 2 Description . 5 2.1 Identifi
19、cation . 5 2.1.1 Chemical name . 5 2.1.2 Synonym or common name 5 2.1.3 Relative molecular mass . 5 2.1.4 Empirical formula. 5 2.1.5 Chemical formula . 5 2.1.6 CAS Registry Number 5 2.1.7 EINECS reference 5 2.2 Commercial form . 5 2.3 Physical properties 6 2.3.1 Appearance 6 2.3.2 Density 6 2.3.3 So
20、lubility in water 6 2.3.4 Vapour pressure 6 2.3.5 Boiling point at 100 kPa 6 2.3.6 Melting point . 6 2.3.7 Specific heat . 6 2.3.8 Viscosity (dynamic) . 6 2.3.9 Critical temperature . 6 2.3.10 Critical pressure. 6 2.3.11 Physical hardness . 6 2.4 Chemical properties 7 3 Purity criteria 7 3.1 General
21、 7 3.2 Composition of commercial product . 7 3.3 By-products 7 3.4 Chemicals parameters 8 4 Test methods 8 4.1 Sampling . 8 4.2 Analysis 9 4.2.1 Carbon dioxide . 9 4.2.2 Impurities 9 5 Labelling - Transportation - Storage 9 5.1 Means of delivery . 9 5.2 Labelling according to the EU legislation )10
22、5.3 Transportation regulations and labelling 11 5.4 Marking . 11 5.5 Storage 11 Annex A (informative) General information on carbon dioxide . 12 A.1 Origin 12 A.2 Use 12 A.3 General rules relating to safety 13 Bibliography 14 DIN EN 936:2014-03EN 936:2013 (E) 2Foreword This document (EN 936:2013) ha
23、s 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 June 2014, and conflicting national sta
24、ndards shall be withdrawn at the latest by June 2014. 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 patent rights. This document supersedes EN 936:
25、2006. Significant technical differences between this edition and EN 936:2006 are as follows: a) the transportation regulations and labelling have been updated; b) the requirement for carbon dioxide content is now 99,9 % instead of 99,0 % in the latest edition; c) possible impurities are taken into a
26、ccount; d) reference to sampling is changed; e) revision of clause for raw materials; f) revision of rules for safe handling and use of the product. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European
27、 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, Slovakia, Sloveni
28、a, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 936:2014-03 EN 936:2013 (E) 3Introduction In respect to the 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 provide
29、s no information as to whether the product 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 this produ
30、ct remain in force. NOTE Conformity with this European 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. DIN EN 9
31、36:2014-03EN 936:2013 (E) 41 Scope This European Standard is applicable to carbon dioxide used for treatment of water intended for human consumption. It describes the characteristics of carbon dioxide and specifies the requirements and corresponding analytical methods for carbon dioxide. It also giv
32、es information on its use in water treatment. 2 Description 2.1 Identification 2.1.1 Chemical name Carbon dioxide. 2.1.2 Synonym or common name Carbonic acid gas (carbonic anhydride). 2.1.3 Relative molecular mass 44,011. 2.1.4 Empirical formula CO2. 2.1.5 Chemical formula CO2. 2.1.6 CAS Registry Nu
33、mber1)124-38-9. 2.1.7 EINECS reference2)204-696-9. 2.2 Commercial form The carbon dioxide is supplied as a pressurised liquefied or refrigerated pressurised gas. NOTE The solid form is not usually used for the treatment of water intended for human consumption. 1) Chemical Abstracts Service Registry
34、Number. 2) European Inventory of Existing Commercial Chemical Substances. DIN EN 936:2014-03 EN 936:2013 (E) 52.3 Physical properties 2.3.1 Appearance The carbon dioxide is a colourless gas or liquid. 2.3.2 Density The density of the gas at 0 C and 101,3 kPa 3)is 1,976 8 kg/m3, while the density of
35、the liquid at 0 C and 4 000 kPa is 933,318 kg/m3. 2.3.3 Solubility in water The solubility of the gas in water is 1,72 g/l at 20 C and 101,3 kPa. 2.3.4 Vapour pressure The vapour pressure of the liquid is 5 733,0 kPa at 20 C. 2.3.5 Boiling point at 100 kPa See 2.3.6. 2.3.6 Melting point The sublimat
36、ion point of solid CO2is 78,9 C and 101,3 kPa. 2.3.7 Specific heat The specific heat of carbon dioxide is 0,827 kJ/kg x K at 0 C and 100 kPa. 2.3.8 Viscosity (dynamic) The viscosity of the liquid is 147 107Pa x s at 20 C. 2.3.9 Critical temperature The critical temperature of the liquid is 31 C. 2.3
37、.10 Critical pressure The critical pressure of the carbon dioxide is 7 383 kPa. 2.3.11 Physical hardness Not applicable. 3) 100 kPa = 1 bar. DIN EN 936:2014-03EN 936:2013 (E) 62.4 Chemical properties The carbon dioxide CO2forms a weak acid when dissolved in water. It reacts in aqueous solution with
38、alkali hydroxides to form carbonates and bicarbonates. 3 Purity criteria 3.1 General This European Standard specifies the minimum purity requirements for carbon dioxide used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the product. De
39、pending on the raw material and the manufacturing process, other impurities may be present and if so, the user and when necessary to relevant authorities, shall be notified. Users of this product should check the national regulations in order to clarify whether it is of appropriate purity for treatm
40、ent 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 the product standard. Limits have been given for impurities and chemical parameters where these are likely to be present i
41、n significant quantities from the current production process and raw materials. If the production process or raw materials lead to significant quantities of further impurities or by-products being present, this shall be notified to the user. 3.2 Composition of commercial product The products shall c
42、onform to the requirements specified in Table 1. Table 1 Composition of commercial product Carbon dioxide, CO2volume fraction 99,9 % NOTE The minimum requirements of the commercial product are defined in the EU Directive 2008/84/EC of August 27, 2008 (see 2) and additional Changes RL 2010/67/EG from
43、 October 20th, 2010. 3.3 By-products The product tested in liquid phase shall conform to the requirements specified in Table 2. DIN EN 936:2014-03 EN 936:2013 (E) 7Table 2 By-products Content Moisture volume fraction 50 10-6(mass fraction 20 10-6max.) Ammonia volume fraction 2,5 10-6Oxygen volume fr
44、action 30 10-6Oxides of Nitrogen (NO/NO2) volume fraction 2,5 10-6each Non-volatile residue(particulates) mass fraction 10 10-6Non-volatile organic components (oil and fat) mass fraction 5 10-6Phosphine avolume fraction 0,3 10-6Total volatile hydrocarbons (calculated as methane) volume fraction 50 1
45、0-6of which volume fraction 20 10-6non-methane hydrocarbons Acetaldehyde volume fraction 0,2 10-6Benzene volume fraction 0,02 10-6Carbon Monoxide volume fraction 10 10-6Methanol volume fraction 10 10-6Hydrogen Cyanide bvolume fraction 0,5 10-6Total sulfur (as S) cvolume fraction 0,1 10-6Taste and od
46、our in water Acceptable to consumers and no abnormal change aAnalysis necessary only for carbon dioxide from phosphate rock sources. bAnalysis necessary only for carbon dioxide from coal gasification sources. cIf the total sulfur content exceeds volume fraction 0,1 10-6as sulfur then the species sha
47、ll be determined separately and the following limits apply: Carbonyl Sulfide volume fraction 0,1 10-6; Hydrogen Sulfide volume fraction 0,1 10-6; Sulfur Dioxide volume fraction 1,0 10-6. 3.4 Chemicals parameters Further chemical parameters and indicator parameters according to EU Directive 98/83/EC
48、(see 1) are not found in the gaseous phase. Pesticides and polycyclic aromatic hydrocarbons are not by-products of the manufacturing process. 4 Test methods 4.1 Sampling The recommendations of ISBT “Carbon Dioxide Quality Guidelines and Analytical Procedure Bibliography, November 2010” (see 4) should be observed. DIN EN 936:2014-03EN 936:2013 (E) 84.2 Analysis 4.2.1 Carbon dioxide Measure of a fixed volume of product (
