EN 1410-2008 en Chemicals used for treatment of water intended for human consumption - Cationic polyacrylamides《饮用水处理用化学试剂 阴离子聚丙烯酰胺》.pdf

1、BS EN 1410:2008ICS 13.060.20; 71.100.80NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDChemicals usedfor treatment ofwater intended forhuman consumption CationicpolyacrylamidesThis British Standard was published under theauthority of the StandardsPolicy and Stra

2、tegyCommittee on 32008 BSI 2008ISBN 978 0 580 57153 4Amendments/corrigenda issued since publicationDate CommentsBS EN 1410:2008National forewordThis British Standard is the UK implementation of EN 1410:2008. Itsupersedes BS EN 1410:1998 which is withdrawn.The UK participation in its preparation was

3、entrusted to TechnicalCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correc

4、t application.Compliance with a British Standard cannot confer immunityfrom legal obligations.0 SeptemberBS EN 1410:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1410January 2008ICS 71.100.80 Supersedes EN 1410:1998 English VersionChemicals used for treatment of water intended for humanconsu

5、mption - Cationic polyacrylamidesProduits chimiques utiliss pour le traitement de leaudestine la consommation humaine - PolyacrylamidescationiquesProdukte zur Aufbereitung von Wasser fr denmenschlichen Gebrauch - Kationische PolyacrylamideThis European Standard was approved by CEN on 10 November 200

6、7.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 obtained on a

7、pplication 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 Management Centre

8、 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, Poland, Po

9、rtugal,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 any means

10、reservedworldwide for CEN national Members.Ref. No. EN 1410:2007: EBS EN 1410:2008EN 1410:2008 (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 Synonym or common name6 3.1.3 Relative molecular mass.6 3

11、.1.4 Empirical formula.6 3.1.5 Chemical formulae.7 3.1.6 CAS Registry Numbers 7 3.1.7 EINECS reference .8 3.1.8 Commercial form .8 3.2 Physical properties8 3.2.1 Appearance 8 3.2.2 Density 8 3.2.3 Solubility.8 3.2.4 Vapour pressure 8 3.2.5 Boiling point at 100 kPa .8 3.2.6 Melting point.8 3.2.7 Spec

12、ific heat.9 3.2.8 Viscosity, dynamic.9 3.2.9 Critical temperature.9 3.2.10 Critical pressure.9 3.2.11 Physical hardness .9 3.3 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 method

13、s10 5.1 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 EU Directives 15 6.3 Transportation regulations

14、and labelling15 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 cationic polyacrylamides .16 A.1 Origin 16 BS EN 1410:2008EN 1410:2008 (E) 3 A.1.1 Raw materials 16 A.1.2 Manufacturing process. 16 A.2 Use 16 A.

15、2.1 Function 16 A.2.2 Form in which it is used 17 A.2.3 Treatment dose 17 A.2.4 Means of application. 17 A.2.5 Secondary effects 17 A.2.6 Removal of excess product 17 A.3 Rules for safe handling and use 17 A.4 Emergency procedures. 18 A.4.1 First aid. 18 A.4.2 Spillage. 18 A.4.3 Fire 18 Bibliography

16、 19 BS EN 1410:2008EN 1410:2008 (E) 4 Foreword This document (EN 1410:2008) 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 te

17、xt 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 1410:1998. Significant technical differences between this edition and EN 1410:1998 are as follows: (a) reduction in the limit value for acry

18、lamide 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 followi

19、ng 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, Sloven

20、ia, Spain, Sweden, Switzerland and United Kingdom. BS EN 1410:2008EN 1410:2008 (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: a) this European Standard provides no information

21、 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 product remain in for

22、ce. 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. BS EN 1410:2008EN 1410:2

23、008 (E) 6 1 Scope This European Standard is applicable to cationic polyacrylamides used for treatment water intended for human consumption. It describes the characteristics of cationic polyacrylamides and specifies the requirements and the corresponding test methods for cationic polyacrylamides. It

24、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, the latest edition of the referenced document (including

25、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 Sampling Vocabulary ISO 8213, Chemical products for in

26、dustrial 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 amine ester or amide. 3.1.2 Synonym or common name Cationic polyacrylamide. NOTE The more general t

27、erms: “cationic polymer“, “cationic polyelectrolyte“ and “cationic flocculant“ are used but can also cover other chemicals referred to in other European Standards. 3.1.3 Relative molecular mass Typically in the range of 1 to 20 million. 3.1.4 Empirical formula ()( )yxAONHCONHC53 dcbaBS EN 1410:2008E

28、N 1410:2008 (E) 7 where A is a negative ion; a, b, c and d are variable depending on the cationic monomer; x and y are variable depending on the product. 3.1.5 Chemical formulae Copolymer of acrylamide and amine ester Copolymer of acrylamide and amine amide where n and m are variables depending on t

29、he product. 3.1.6 CAS Registry Numbers 1)The following is a list of CAS Registry Numbers for typical cationic polyacrylamide polymers. 69418-26-4 26006-22-4 35429-19-7 25568-39-2 60162-07-4 1)Chemical Abstracts Service Registry Number. BS EN 1410:2008EN 1410:2008 (E) 8 51410-72-1 52285-95-7 68227-15

30、-6 55216-72-3 26796-75-8 45021-77-0 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. 3.1.8 Commercial form Cationic polyacrylamide as specified in this standard

31、 is available as a solid containing a small amount of residual moisture. 3.2 Physical properties 3.2.1 Appearance The product is a white or off-white solid in the form of granule, flake or powder. 3.2.2 Density The bulk density of the product is typically in the range 0,5 g/cm3to 0,8 g/cm3. 3.2.3 So

32、lubility 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. 3.2.4 Vapour pressure Not applicable. 3.2.5 Boiling point at 100 kPa 3)Not applicable. 3.2.6 Melting point The product decomposes a

33、t approximately 200 C. 2)European Inventory of Existing Commercial Chemical Substances. 3)100 kPa = 1 bar. BS EN 1410:2008EN 1410:2008 (E) 9 3.2.7 Specific heat Not applicable. 3.2.8 Viscosity, dynamic Not applicable. 3.2.9 Critical temperature Not applicable. 3.2.10 Critical pressure Not applicable

34、. 3.2.11 Physical hardness Not applicable. 3.3 Chemical properties Cationic polyacrylamide is a non hazardous material and not intrinsically reactive. However, in common with many other organic compounds, a strong exothermic reaction will occur if it is brought into contact in the dry state with a s

35、trong acid or 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 specifies the minimum purity requirements for cationic polyacrylamides

36、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 notified to the user and when necessary to relevant a

37、uthorities. 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 quality, required dosage and contents of other impurities and additives used in th

38、e 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 materials. If the production process or raw materials lead to significant quantities

39、of impurities, by-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial product The cationic polyacrylamide shall be free of any visible extraneous matter. NOTE Various parameters can be checked as part of assessment of product quality (see 5.2.2). BS

40、 EN 1410:2008EN 1410:2008 (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-products which are relevant to the application of these products in drinking water treatment. 4.4

41、 Chemical parameters The product 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/EC (see 1) are not relevant to polyacrylamides because the raw materials used in the manufacturing

42、 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 and ISO 6206 shall be followed. A representative sample of the solid product, of sufficient mass, s

43、hall 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 sampled. Reference samples shall be retained for the storage life of the product as claimed by the manufa

44、cturer/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,

45、 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 be provided by the manufacturer/supplier, if requested. NOTE A number of physical/chemical measurements can be used by manufacturers to ensur

46、e the consistent quality of products delivered to customers. For example, solution viscosity is commonly measured, this being done under strictly controlled conditions. The viscosity value obtained provides a reliable indication of relative molecular mass when comparing batches of a particular produ

47、ct, but has no significance in absolute terms, since it is highly dependent on the composition of the product, the solution preparation procedure, the measuring device and test conditions used. Other tests which can be carried out include determination of ionic charge, solubility, particle size and

48、infra-red spectroscopic analysis, depending on the product and manufacturer/supplier. 5.2.3 Impurity: residual acrylamide monomer content 5.2.3.1 Principle Acrylamide monomer is extracted from the cationic polyacrylamide sample into a mixture of water and acetone which softens the polymer but does n

49、ot dissolve it. The extract is analysed by high-performance liquid chromatography (HPLC) using ultraviolet detection. Identification is made by comparison with an external standard and concentration determined by peak area measurements and ratio. BS EN 1410:2008EN 1410:2008 (E) 11 5.2.3.2 Apparatus Ordinary laboratory apparatus and glassware together with the following: 5.2.3.2.1 For extraction 5.2.3.2.1.1 Glass bottles (approximately 125 ml capacity) with polytetrafluoroethylene (PTFE) lined screw caps. 5.2.3.2.1.2 Balance, with an a