1、September 2016 English price group 13No 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 71.100.80This standard has bee
2、n included in the body of DVGW Technical Rules.!%0L“2561341www.din.deDIN EN 882Chemicals used for treatment of water intended for human consumption Sodium aluminate;English version EN 882:2016,English translation of DIN EN 882:2016-09Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch
3、Natriumaluminat;Englische Fassung EN 882:2016,Englische bersetzung von DIN EN 882:2016-09Produits chimiques utiliss pour le traitement de leau destine la consommation humaine Aluminate de sodium;Version anglaise EN 882:2016,Traduction anglaise de DIN EN 882:2016-09SupersedesDIN EN 882:2005-02www.beu
4、th.deDocument comprises 24 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.08.16 DIN EN 882:2016-09 2 A comma is used as the decimal marker. National foreword This document (EN 882:2016) has been prepared by Technical Committee
5、 CEN/TC 164 “Water supply” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice), DIN-DVGW Joint Working Committee NA 119-07-13 AA Aufbereitungsstoffe und -anlagen. Users of this standard are
6、 advised of the reservations stated in the Introduction of the European Standard and should note that national regulations exist in Germany dealing with water for human consumption, in particular the Trinkwasserverordnung (TrinkwV 2001) (German Drinking Water Ordinance). Amendments This standard dif
7、fers from DIN EN 882:2005-02 as follows: a) the chemical names for aluminium sodium dioxide and for aluminium sodium tetrahydroxide have been added; b) CAS and EINECS references have been modified; c) specifications concerning hazard and safety related symbols have been brought in line with the Glob
8、ally Harmonized System of Classification, Labelling and Packaging of Chemicals (GHS); d) details regarding transportation regulations and labelling have been differentiated according to the means of delivery (solids, liquids); e) storage requirements have been revised. Previous editions DIN 19601: 1
9、956-03, 1969-05, 1987-03 DIN EN 882: 1997-09, 2005-02 DIN EN 882:2016-09 3 National Annex NA (informative) Bibliography Verordnung ber die Qualitt von Wasser fr den menschlichen Gebrauch (Trinkwasserverordnung TrinkwV 2001) (German Drinking Water Ordinance), as of 02 August 2013 (BGBI. (German Feder
10、al Law Gazette) I, 2013, no. 46, pp. 2977-3004), as amended by Article 4, Paragraph 22 of the Act of 7 August 2013 (BGBI. I, no. 48, pp. 3154-3211)*)*)Obtainable from: Bundesministerium der Justiz (German Federal Ministry of Justice) (Internet: http:/www.gesetze-im-internet.de). DIN EN 882:2016-09 4
11、 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 882 March 2016 ICS 71.100.80 Supersedes EN 882:2004English Version Chemicals used for treatment of water intended for human consumption - Sodium aluminate Produits chimiques utiliss pour le traitement de leau dest
12、ine la consommation humaine - Aluminate de sodium Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Natriumaluminat This European Standard was approved by CEN on 18 January 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condition
13、s 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 member. This European Standard exists in
14、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. CEN members are the national standards
15、 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, Portugal, Romania, Slovakia, Sloveni
16、a, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION 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 wor
17、ldwide for CEN national Members. Ref. No. EN 882:2016 EEN 882:2016 (E) 2 Contents Page European 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 molecular mass . 6 3.1.4 Empiric
18、al formula . 6 3.1.5 Chemical formula 6 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 7 3.3.4 Vapour pressure 7 3.3.5 Boiling point at 100 kPa . 7 3.3.6 Melting or crystallization point . 7
19、 3.3.7 Specific heat 8 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 . 9 4.1 General 9 4.2 Composition of commercial product 9 4.3 Impurities and main by-products . 9 4.4 Chemical paramet
20、ers . 9 5 Test methods . 10 5.1 Sampling 10 5.1.1 General . 10 5.1.2 Solid . 10 5.1.3 Liquid 10 5.2 Analyses . 11 6 Labelling Transportation Storage 11 6.1 Means of delivery . 11 6.2 Labelling in accordance with the EU legislation 11 6.3 Transportation regulations and labelling . 12 6.4 Marking 13 D
21、IN EN 882:2016-09EN 882:2016 (E) 3 6.5 Storage 13 6.5.1 General . 13 6.5.2 Long term stability . 13 6.5.3 Storage incompatibilities . 13 Annex A (informative) General information on sodium aluminate 14 A.1 Origin 14 A.1.1 Raw materials 14 A.1.2 Manufacturing process . 14 A.2 Quality of commercial pr
22、oduct 14 A.3 Use 17 A.3.1 Function . 17 A.3.2 Form in which it is used 17 A.3.3 Treatment dose . 17 A.3.4 Means of application 18 A.3.5 Secondary effects 18 A.3.6 Removal of excess product 18 Annex B (normative) General rules relating to safety 19 B.1 Rules for safe handling and use . 19 B.2 Emergen
23、cy procedures . 19 B.2.1 Accident 19 B.2.2 Spillage . 19 B.2.3 Fire . 19 Bibliography . 20 DIN EN 882:2016-09EN 882:2016 (E) 4 European foreword This document (EN 882:2016) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This European St
24、andard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2016, and conflicting national standards shall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of the elemen
25、ts 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 882:2004. Significant technical differences between this edition and EN 882:2004 are as follows: a) addition of chemica
26、l names for aluminium sodium dioxide and for aluminium sodium tetrahydroxide; b) replacement of 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 countr
27、ies are bound to implement 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, Pola
28、nd, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 882:2016-09EN 882:2016 (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 document: a) th
29、is document provides 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 characteri
30、stics of this product remain in force. NOTE Conformity with this document 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 document is subject to regulation or control by National Authorities. DIN EN
31、882:2016-09EN 882:2016 (E) 6 1 Scope This document is applicable to sodium aluminate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of sodium aluminate and refers to the corresponding analytical methods. It gives informatio
32、n for its use in water treatment. It also determines the rules relating to safe handling and use of sodium aluminate (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 re
33、ferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1302, Chemicals used for treatment of water intended for human consumption - Aluminium-based coagulants - Analytical methods ISO 3165, Sampling of ch
34、emical products 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 3 Description 3.1 Identifi
35、cation 3.1.1 Chemical name Aluminium sodium oxide Aluminium sodium dioxide Aluminium sodium tetrahydroxide 3.1.2 Synonym or common name Sodium aluminate 3.1.3 Relative molecular mass 82 for NaAlO2.3.1.4 Empirical formula NaAlO20,1 Na2O.nH2O (n varies from 0,3 to 0,4) 3.1.5 Chemical formula NaAlO2DIN
36、 EN 882:2016-09EN 882:2016 (E) 7 3.1.6 CAS Registry Number 1)1302-42-7 12251-53-5 3.1.7 EINECS reference 2)215-100-1 235-487-0 3.2 Commercial form Sodium aluminate is available as solids (powder or granules) or solutions. 3.3 Physical properties 3.3.1 Appearance The product is a white powder or gran
37、ules or colourless to yellow liquid. 3.3.2 Density The absolute density of solids products is 2,35 g/cm3. The tamped bulk density (powder) is between 1 g/cm3to 1,2 g/cm3(depends on grain size). The density of solutions is 1,5 g/ml for a solution containing 10 % of active matter, expressed as mass fr
38、action of aluminium in the product (10 % Al). 3.3.3 Solubility Sodium aluminate is soluble in water to yield solutions of up to 12,7 % Al at 20 C (concentration higher than 400 g/l). NOTE Depending on temperature and degree of dilution, solutions of sodium aluminate can hydrolyse and form a precipit
39、ate. 3.3.4 Vapour pressure Solid not applicable Solution not known 3.3.5 Boiling point at 100 kPa 3) Solid not applicable Solution not known 3.3.6 Melting or crystallization point Solid melting point: approximately 1 650 C 1)Chemical Abtracts Service Registry Number. 2)European inventory of Existing
40、 Commercial chemicals Substances. 3)100 kPa = 1 bar DIN EN 882:2016-09EN 882:2016 (E) 8 Solution typical values for crystallization point range between - 15 C and - 25 C 3.3.7 Specific heat Not known 3.3.8 Viscosity (dynamic) Typical values of dynamic viscosity for sodium aluminate solutions, contai
41、ning 10 % Al and 12,7 % Al are given in Table 1. Table 1 Viscosity Temperature C Viscosity mPa.s 10 % Al 12,7 % Al - 5 1 250 15 000 0 650 7 000 5 360 2 850 10 200 1 650 15 140 900 20 120 560 3.3.9 Critical temperature Not applicable 3.3.10 Critical pressure Not applicable 3.3.11 Physical hardness So
42、lid not known Solution not applicable 3.4 Chemical properties Sodium aluminate solutions are highly alkaline. Their solutions hydrolyse and form a precipitate of aluminium hydroxide when diluted beyond a particular level or neutralized. NOTE Since aluminium compounds are amphoteric in nature, the so
43、lubility of aluminium depends on the pH value and it is advised to use the product within an appropriate pH range. When dissolved in drinking water, calcium is partially precipitated with aluminium hydroxide. DIN EN 882:2016-09EN 882:2016 (E) 9 4 Purity criteria 4.1 General This document specifies t
44、he minimum purity requirements for sodium aluminate 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 be n
45、otified 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, contents
46、of other impurities and additives used in the product not stated in this document. 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 mate
47、rials leads 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 concentration of active matter in the commercial product, expressed as a mass fraction of aluminium in the product (Al %) shall b
48、e within 3 % of the manufacturers declared values. NOTE The concentration of water-soluble aluminium in commercial product varies. Typical values are given here below: Al % of the product Solid forms 27,5 to 29,1 Solution forms 10 to 13,2 4.3 Impurities and main by-products The product shall conform
49、 to the requirements specified in Table 2. Table 2 Limits of impurities Impurity Limit g/kg of Al Iron (Fe) max. 0,8 Insoluble matter 8 (solid product) max NOTE The value quoted for iron is both iron (II) and iron (III). Iron can be present as a component of the product and will usually be removed in the treatment process. 4.4 Chemical parameters The product shall conform to the requirements specified in Table 3. DIN EN 882:2016-09EN
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