1、April 2008DEUTSCHE NORM English price group 11No part of this standard 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 71.100.80!$NBX“1433153ww
2、w.din.deDDIN EN 1407Chemicals used for treatment of water intended for humanconsumption Anionic and non-ionic polyacrylamidesEnglish version of DIN EN 1407:2008-04Produkte zur Aufbereitung von Wasser fr den menschlichen Gebrauch Anionische und nicht-ionische PolyacrylamideEnglische Fassung DIN EN 14
3、07:2008-04SupersedesDIN EN 1407:1998-10www.beuth.deDocument comprises 21 pagesDIN EN 1407:2008-04 2 National foreword This standard has been prepared by Technical Committee CEN/TC 164 “Water supply” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normena
4、usschuss Wasserwesen (Water Practice Standards Committee), Technical Committee NA 119-04-02 AA Wasseraufbereitung. Users of this standard should note that national regulations exist in Germany dealing with the characteristics and treatment of water for human consumption, in particular the Trinkwasse
5、rverordnung (TrinkwV2001) (German Drinking Water Ordinance). The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are as follows, whereby EN ISO Standards are only listed below if these have not been published as DIN EN ISO Standards with the same number:
6、EN ISO 3696 DIN ISO 3696 Amendments This standard differs from DIN EN 1407:1998-10 as follows: a) Reference to the Drinking Water Directive (Directive 98/83/EC) has been updated. b) The limit value for acrylamide monomer has been reduced from 250 mg/kg to 200 mg/kg. c) General purity criteria have b
7、een given in more detail. d) Requirements for long term stability have been added. e) Specifications regarding the form in which the product is used and the treatment dose have been extended. Previous editions DIN 19622: 1977-12 DIN EN 1407: 1998-10 National Annex NA (informative) Bibliography DIN I
8、SO 3696, Water for analytical laboratory use Specification and test methods Verordnung zur Novellierung der Trinkwasserverordnung (German Regulation amending the German Drinking Water Ordinance), as of 21 May 2001, BGBl. (German Federal Law Gazette) I, No. 24, pp. 9599801)1)Recorded in the DITR data
9、base of DIN Software GmbH, obtainable from Beuth Verlag GmbH, 10772 Berlin, Germany. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1407January 2008ICS 71.100.80 Supersedes EN 1407:1998 English VersionChemicals used for treatment of water intended for humanconsumption - Anionic and non-ionic poly
10、acrylamidesProduits chimiques utiliss pour le traitement de leaudestine la consommation humaine - Polyacrylamidesanioniques et non ioniquesProdukte zur Aufbereitung von Wasser fr denmenschlichen Gebrauch - Anionische und nicht-ionischePolyacrylamideThis European Standard was approved by CEN on 10 No
11、vember 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obt
12、ained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Managem
13、ent Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
14、Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by
15、any means reservedworldwide for CEN national Members.Ref. No. EN 1407:2008: EEN 1407:2008 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Description .6 3.1 Identification.6 3.1.1 Chemical names.6 3.1.2 Synonyms or common names6 3.1.3 Relative molecular mass.6 3.1.
16、4 Empirical formulae.6 3.1.5 Chemical formulae.7 3.1.6 CAS Registry Numbers 8 3.1.7 EINECS reference .8 3.2 Commercial form .8 3.3 Physical properties8 3.3.1 Appearance 8 3.3.2 Density 8 3.3.3 Solubility.8 3.3.4 Vapour pressure 8 3.3.5 Boiling point at 100 kPa 8 3.3.6 Melting point.8 3.3.7 Specific
17、heat.9 3.3.8 Viscosity dynamic9 3.3.9 Critical temperature.9 3.3.10 Critical pressure.9 3.3.11 Physical hardness .9 3.4 Chemical properties 9 4 Purity criteria9 4.1 General9 4.2 Composition of commercial product.9 4.3 Impurities and main by-products.10 4.4 Chemical parameters 10 5 Test methods10 5.1
18、 Sampling.10 5.2 Analyses .10 5.2.1 General10 5.2.2 Main product 10 5.2.3 Impurity : Residual acrylamide monomer content.10 6 Labelling - transportation - storage .15 6.1 Means of delivery.15 6.2 Risk and safety labelling in accordance with the EC Directives 15 6.3 Transportation regulations and lab
19、elling15 6.4 Marking .15 6.5 Storage15 6.5.1 Long term stability.15 6.5.2 Storage incompatibilities 15 Annex A (informative) General information on anionic and non-ionic polyacrylamides16 A.1 Origin 16 DIN EN 1407:2008-04 EN 1407:2008 (E) 3 A.1.1 Raw materials 16 A.1.2 Manufacturing process.16 A.2 U
20、se 16 A.2.1 Function16 A.2.2 Form in which it is used17 A.2.3 Treatment dose17 A.2.4 Means of application.17 A.2.5 Secondary effects17 A.2.6 Removal of excess product17 A.3 Rules for safe handling and use 18 A.4 Emergency procedures.18 A.4.1 First aid.18 A.4.2 Spillage.18 A.4.3 Fire 18 Bibliography1
21、9 DIN EN 1407:2008-04 EN 1407:2008 (E) 4 Foreword This document (EN 1407:2008) 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
22、 text or by endorsement, at the latest by July 2008, and conflicting national standards shall be withdrawn at the latest by July 2008. This document supersedes EN 1407:1998. Significant technical differences between this edition and EN 1407:1998 are as follows: (a) reduction in the limit value for a
23、crylamide from 250 mg/kg to 200 mg/kg in 4.4; (b) updating of the reference to the drinking water directive from 80/778/EEC to 98/83/EC; (c) provision of more information on treatment dose in Annex A. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the foll
24、owing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slo
25、venia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 1407:2008-04 EN 1407:2008 (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 provides no inf
26、ormation 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 this product remai
27、n 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 1407:2008
28、-04 EN 1407:2008 (E) 6 1 Scope This European Standard is applicable to anionic and non-ionic polyacrylamides used for treatment of water intended for human consumption. It describes the characteristics of anionic and non-ionic polyacrylamides and specifies the requirements and the corresponding test
29、 methods for anionic and non-ionic polyacrylamides. It gives information on their use in water treatment. 2 Normative references The following referenced documents are indispensable for the application of this document. 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 3696:1987) ISO 3165, Sampling of chemical products for industrial use Safety in sampling ISO 6206, Chemical products for industrial use
31、 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 Identification 3.1.1 Chemical names Copolymer of acrylamide and acrylic acid salt, or homopolymer of acrylam
32、ide. 3.1.2 Synonyms or common names Anionic polyacrylamide or non-ionic polyacrylamide. NOTE The more general terms: “anionic (or non-ionic) polymer“, “anionic polyelectrolyte“ and “anionic (or non-ionic) flocculant“ are used but can also cover other chemicals referred to in other European Standards
33、. 3.1.3 Relative molecular mass Typically in the range of 1 million to 20 million. 3.1.4 Empirical formulae Non-ionic polyacrylamide: (C3H5NO)x- Anionic polyacrylamide: (C3H5NO)x- (C3H3O2A)y- DIN EN 1407:2008-04 EN 1407:2008 (E) 7 where A is a positive ion; x and y are variable depending on the prod
34、uct. 3.1.5 Chemical formulae Anionic polyacrylamide: Non-ionic polyacrylamide: where m and n are variable depending on the product. DIN EN 1407:2008-04 EN 1407:2008 (E) 8 3.1.6 CAS Registry Numbers 1)The following is an exemplary list of CAS Registry Numbers for typical anionic or non-ionic polyacry
35、lamides: 25085-02-3 9003-05-8 9003-04-7 3.1.7 EINECS reference 2)The conformity of polymers to EINECS is assessed on the basis of the monomers of which they are composed. Thus, EINECS reference numbers do not exist for polymers. 3.2 Commercial form Anionic or non-ionic polyacrylamides as specified i
36、n this standard are available as solids containing a small amount of residual moisture. 3.3 Physical properties 3.3.1 Appearance The product is a white or off-white solid in the form of granule, flake or powder. 3.3.2 Density The bulk density of the product is typically in the range 0,6 g/cm3 to 0,9
37、 g/cm3. 3.3.3 Solubility The product is soluble in cold water. Its solubility is limited only by viscosity, with a gel being formed at concentrations of approximately 20 g/l and above. 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa Not applicable. 3.3.6 Melting point The produc
38、t decomposes at approximately 200 C. 1)Chemical Abstracts Service Registry Number. 2)European Inventory of Existing Commercial Chemical Substances. DIN EN 1407:2008-04 EN 1407:2008 (E) 9 3.3.7 Specific heat Not applicable. 3.3.8 Viscosity dynamic Not applicable. 3.3.9 Critical temperature Not applic
39、able. 3.3.10 Critical pressure Not applicable. 3.3.11 Physical hardness Not applicable. 3.4 Chemical properties Anionic and non-ionic polyacrylamides are non-hazardous materials and not intrinsically reactive. However, in common with many other organic compounds, a strong exothermic reaction will oc
40、cur if they are brought into contact in the dry state with a strong acid or strong oxidizing agent. NOTE In dilute solution there can be a reaction with, or destruction by, some of the disinfection and oxidizing agents used in water treatment. 4 Purity criteria 4.1 General This European Standard spe
41、cifies the minimum purity requirements for anionic and non-ionic polyacrylamides 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 presen
42、t and, if so, this shall be notified to the user and when necessary to relevant authorities. NOTE 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 q
43、uality, required dosage and 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 in significant quantities from the current production process and raw mate
44、rials. 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 anionic or non-ionic polyacrylamide shall be free of any visible extraneous matter. NO
45、TE Various parameters can be checked as part of assessment of product quality (see 5.2.2). DIN EN 1407:2008-04 EN 1407:2008 (E) 10 4.3 Impurities and main by-products Based on the raw materials and manufacturing process (see A.1), there are no significant concentrations of additional reactants or by
46、-products which are relevant to the application of these products in drinking water treatment. 4.4 Chemical parameters The products shall contain no more than 200 mg of acrylamide monomer per kilogram of product. NOTE Other chemical parameters and indicator parameters as listed in EU Directive 98/83
47、/EC (see 1) are not relevant to polyacrylamides because the raw materials used in the manufacturing process are free of them and they are not by-products of the manufacturing process. 5 Test methods 5.1 Sampling Sampling shall be in accordance with ISO 8213 and the recommendations given in ISO 3165
48、and ISO 6206 shall be followed. A representative sample of the solid product, of sufficient mass, shall be obtained immediately after manufacture or from a newly opened package(s). The sample shall be clearly labelled with product name/code, batch number, type of container(s) sampled and date sample
49、d. Reference samples shall be retained for the storage life of the product as claimed by the manufacturer/supplier. 5.2 Analyses 5.2.1 General Unless otherwise specified, all reagents shall be of recognized analytical grade. The water used shall conform to grade 2 specified in EN ISO 3696. 5.2.2 Main product If additional requirements are agreed between the customer and the manufacturer/supplier, the latter shall provide the necessary test methods, if requested, so that the customer can carry out his own quality checks. A certificate of analysis shall
