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.!%3v“2561683www.din.deDIN EN 878Chemicals used for treatment of water intended for human consumption Aluminium sulfate;English version EN 878:2016,English translation of DIN EN 878:2016-09Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch
3、 Aluminiumsulfat;Englische Fassung EN 878:2016,Englische bersetzung von DIN EN 878:2016-09Produits chimiques utiliss pour le traitement de leau destine la consommation humaine Sulfate daluminium;Version anglaise EN 878:2016,Traduction anglaise de DIN EN 878:2016-09SupersedesDIN EN 878:200409www.beut
4、h.deDocument comprises 22 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.09.16 DIN EN 878:2016-09 2 A comma is used as the decimal marker. National foreword This document (EN 878:2016) 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 diff
7、ers from DIN EN 878:2004-09 as follows: a) a CAS Registry Number for tetradecahydrate has been added; b) information relating to the crystallization point has been added: c) specifications concerning hazard and safety related symbols have been brought in line with the Globally Harmonized System of C
8、lassification, Labelling and Packaging of Chemicals (GHS); d) storage requirements have been revised; e) the concentration of the solution used has been modified. Previous editions DIN 19600: 1956-03, 1969-05, 1987-05 DIN EN 878: 1997-09, 2004-09 DIN EN 878:2016-09 3 National Annex NA (informative)
9、Bibliography Verordnung ber die Qualitt von Wasser fr den menschlichen Gebrauch (Trinkwasserverordnung TrinkwV 2001) (German Drinking Water Ordinance), as of 2 August 2013 (BGBI. 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.
10、3154-3211)*) *)Obtainable from: Bundesministerium der Justiz (German Federal Ministry of Justice) (Internet: http:/www.gesetze-im-internet.de). DIN EN 878:2016-09 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 878 March 2016 ICS 71.100.80 Supersedes EN 878:20
11、04English Version Chemicals used for treatment of water intended for human consumption - Aluminium sulfate Produits chimiques utiliss pour le traitement de leau destine la consommation humaine - Sulfate daluminium Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Aluminiumsulfat Th
12、is 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 conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical refer
13、ences 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
14、 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 Republic of Macedonia
15、, 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 NORMALISATION EUROPISCH
16、ES 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 878:2016 EEN 878:2016 (E) 2 Contents Page European foreword 4 1 Scope . 5 2 Normative refer
17、ences . 5 3 Description . 5 3.1 Identification . 5 3.1.1 Chemical name 5 3.1.2 Synonym or common names 5 3.1.3 Relative molecular mass 5 3.1.4 Empirical formula 5 3.1.5 Chemical formula . 5 3.1.6 CAS Registry Number 5 3.1.7 EINECS reference 6 3.2 Commercial forms 6 3.3 Physical properties 6 3.3.1 Ap
18、pearance . 6 3.3.2 Density . 6 3.3.3 Solubility . 6 3.3.4 Vapour pressure at 20 C . 7 3.3.5 Boiling point at 100 kPa 7 3.3.6 Crystallization point 7 3.3.7 Specific heat . 7 3.3.8 Viscosity (dynamic) . 7 3.3.9 Critical temperature . 7 3.3.10 Critical pressure . 7 3.3.11 Physical hardness 8 3.4 Chemic
19、al properties 8 4 Purity criteria 8 4.1 General . 8 4.2 Composition of commercial product . 8 4.3 Impurities and main by-products 8 4.4 Chemical parameters 9 5 Test methods . 9 5.1 Sampling 9 5.1.1 Solid . 9 5.1.2 Liquid 9 5.2 Analyses 10 6 Labelling - Transportation - Storage 10 6.1 Means of delive
20、ry 10 6.2 Labelling in accordance with the EU legislation 10 6.3 Transportation regulations and labelling 11 6.4 Marking . 12 6.5 Storage 12 6.5.1 General 12 6.5.2 Long term stability 12 6.5.3 Storage incompatibilities . 12 DIN EN 878:2016-09EN 878:2016 (E) 3 Annex A (informative) General informatio
21、n on aluminium sulfate . 13 A.1 Origin . 13 A.1.1 Raw materials . 13 A.1.2 Manufacturing process 13 A.2 Quality of commercial product . 13 A.3 Use . 15 A.3.1 Function 15 A.3.2 Form in which it is used. 15 A.3.3 Treatment dose 15 A.3.4 Means of application . 15 A.3.5 Secondary effects . 15 A.3.6 Remo
22、val of excess product . 16 Annex B (normative) General rules relating to safety . 17 B.1 Rules for safe handling and use 17 B.2 Emergency procedures 17 B.2.1 First aid . 17 B.2.2 Spillage 17 B.2.3 Fire 17 Bibliography 18 DIN EN 878:2016-09EN 878:2016 (E) 4 European foreword This document (EN 878:201
23、6) 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 text or by endorsement, at the latest by September 2016, and conflicting na
24、tional standards shall be withdrawn at the latest by September 2016. 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 sup
25、ersedes EN 878:2004. Significant technical differences between this edition and EN 878:2004 are as follows: a) addition of CAS Registry Number for tetradecahydrate; b) information relating to the crystallization point added; c) replacement of warning and safety precautions notes by labelling accordi
26、ng to Regulation (EC) No 1272/2008; d) modification of the concentration of the solutions used. In respect 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 p
27、roduct 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 this product remain in force. NOTE Conformity
28、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. According to the CEN-CENELEC Internal Regulations, th
29、e national standards organizations of the following countries 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, Latvi
30、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 878:2016-09EN 878:2016 (E) 5 1 Scope This European Standard is applicable to aluminium sulfate used for treatment of water intended f
31、or human consumption. It describes the characteristics of aluminium sulfate and specifies the requirements for aluminium sulfate and gives reference to the analytical methods. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of alumin
32、ium sulfate (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, the latest edition of the referenced do
33、cument (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 chemical products for industrial use Safety in sampling ISO 6206, Chemical products for industrial use Samp
34、ling 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 Identification 3.1.1 Chemical name Aluminium sulfate. 3.1.2 Synonym or common names Aluminium sulfate, cake alum,
35、 alum. NOTE In English the generic term “alum” is imprecise and is deprecated and in German the term “Alaun” is misleading. 3.1.3 Relative molecular mass 342,14 for Al2(SO4)3. 3.1.4 Empirical formula Al2(SO4)3. 3.1.5 Chemical formula Al2(SO4)3nulln H2O. 3.1.6 CAS Registry Number 1)Al2(SO4)3: 10043-0
36、1-3. 1)Chemical Abstracts Service Registry Number. DIN EN 878:2016-09EN 878:2016 (E) 6 Al2(SO4)3 14 H2O: 16828-12-9. Al2(SO4)316 H2O: 16828-11-8. Al2(SO4)318 H2O: 7784-31-8 3.1.7 EINECS reference 2)Al2(SO4)3: 233-135-0. 3.2 Commercial forms Aluminium sulfate is available in solid hydrated forms, wit
37、h different particle sizes (slabs, kibbled, ground, granulated) and as aqueous solutions. 3.3 Physical properties 3.3.1 Appearance The product is a white solid or colourless to yellow, clear liquid. 3.3.2 Density The density of a typical aluminium sulfate solution is given in Table 1 and varies depe
38、nding on the concentration of the active matter (aluminium content), expressed in grams per kilogram of solution (Al g/kg). Table 1 Density of solution Al g/kg of solution Density at 15 C g/ml 40,8 1,310 41,6 1,315 42,5 1,320 43,3 1,325 44,2 1,330 45,0 1,335 3.3.3 Solubility The theoretical limit of
39、 active matter content for a typical solution is given in Table 2. Table 2 Solubility Temperature Active matter in C Al g/kg of solution - 1 44,7 24 44,8 The practical limit of solubility depends on the temperature and the device used for solubilization of the solid form (slabs, kibbled, ground or g
40、ranulated). 2)European Inventory of Existing Commercial Chemical Substances. DIN EN 878:2016-09EN 878:2016 (E) 7 An indication of practical limits is given in Table 3. Table 3 Indication of practical limits of solubility Temperature C Active matter Al g/kg of solution Solubility in grams solid form
41、(containing Al 90 g/kg of solid) per kilogram of solution 15 37 410 3.3.4 Vapour pressure at 20 C Not known. 3.3.5 Boiling point at 100 kPa 3)Not known. 3.3.6 Crystallization point The crystallization point of aluminium sulfate varies, depending on the concentration of the active matter. For example
42、: - 7 C for a typical solution of aluminium content of 42,4 g/kg of solution. Solution stored at low temperatures (below 0C) can spontaneously form a solid mass of crystal hydrate. 3.3.7 Specific heat Not known. 3.3.8 Viscosity (dynamic) The viscosity of aluminium sulfate solution varies greatly, de
43、pending on the concentration of the active matter. For a typical solution of aluminium content of 42,4 g/kg of solution, the viscosity is given in Table 4. Table 4 Viscosity Temperature C Viscosity mPa.s 0 40,0 10 26,5 20 18,6 30 13,2 40 8,8 3.3.9 Critical temperature Not applicable. 3.3.10 Critical
44、 pressure Not applicable. 3)100 kPa = 1 bar. DIN EN 878:2016-09EN 878:2016 (E) 8 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties Aluminium sulfate is an acidic hydrated salt or solution. Very dilute solutions hydrolyse and form a precipitate of aluminium hydroxide. NOTE Since alumin
45、ium compounds are amphoteric in nature, the solubility of aluminium depends on the pH value and it is advised to use the product within an appropriate pH range. 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for aluminium sulfate used for the treatment
46、 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 can be present and, if so, this shall be notified to the user and when necessary to relevant authorities. Users of t
47、he 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 of other impurities and additives used in the product not stated in the pro
48、duct standard, and other relevant factors. 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 a change in the production process or raw materials leads to significant q
49、uantities 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 (aluminium content) in the product expressed as grams per kilogram of product shall be within 3 % of the manufacturers declared values. NOTE The concentration of water-soluble aluminium in commercial products varies. Typical values are given here below: Commercial for
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