【BS英国标准word原稿】BS EN 12850-2009,BS 2000-488-2009 Bitumen and bituminous binders —Determination of the pH value of bituminous emulsions.doc
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1、 ,如果你需要更多标准可以到 如果你购买的文档存在缺页、字迹模糊、乱码等情况,请大家通过论坛消息与我联系。BRITISH STANDARDBS EN 12850:2009BS 2000-488:2009Bitumen andbituminous binders Determination of the pH value of bituminous emulsionsICS 75.140; 91.100.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 12850:2009National
2、forewordThis British Standard is the UK implementation of EN 12850:2009. It supersedes BS EN 12850:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PTI/13, Petroleum testing and terminology.Energy Institute, under the brand of IP, publishes and sell
3、s all Parts ofBS 2000, and all BS EN petroleum test methods that would be Part of BS 2000, both in its annual publication “Standard methods for analysis and testing of petroleum and related products and British Standard 2000 Parts” andindividually.Further information is available from:Energy Institu
4、te, 61 New Cavendish Street, London W1G 7AR. Tel: 020 7467 7100. Fax: 020 7255 1472.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its
5、 correct application.Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April2009 BSI 2009ISBN 978 0 580 64098 8Amendments/corrigenda issued since publicationDat
6、e CommentsBS EN 12850:2009EUROPEAN STANDARD NORME EUROPENNEEUROPISCHE NORMEN 12850March 2009ICS 75.140; 91.100.50Supersedes EN 12850:2002English VersionBitumen and bituminous binders - Determination of the pH value of bituminous emulsionsBitumes et liants bitumineux - Dtermination du pH des mulsions
7、 de bitumeBitumen und bitumenhaltige Bindemittel - Bestimmung des pH-Wertes von BitumenemulsionenThis European Standard was approved by CEN on 17 February 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard t
8、he 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 Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, Germ
9、an). 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 Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Re
10、public, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATION C OM I T EUR OP
11、 EN DE NOR M AL I S ATI ON EUR OP I S C HES KOM I TEE F R NOR M UNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Ref. No. EN 12850:2009: EContentsPageForeword.31Scope .42Normative refe
12、rences .43Terms and definitions .44Principle .45Reagents and materials .46Apparatus .57Sampling .58Procedure .59Expression of results .610Precision .611Test report .6Bibliography .77BS EN 12850:2009EN 12850:2009 (E)ForewordThis document (EN 12850:2009) has been prepared by Technical Committee CEN/TC
13、 336 “Bituminous binders”, 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 2009, and conflicting national standards shall be withdrawn at the la
14、test by September 2009.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 12850:2002.From the previous edition
15、, use of any cleaning agent enabling the dissolution of bitumen is now specified. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denma
16、rk, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.1ScopeThis European Standard specifies a method for measuring t
17、he pH value of bituminous emulsions.It is applicable to anionic, cationic bituminous emulsions and bituminous emulsions prepared by means of non ionic surfactant.NOTEIn certain circumstances, the pH value can provide an indication of the ionic character of a bitumen emulsion. However, this indicatio
18、n should be confirmed by a particle polarity test conforming to EN 1430 1.WARNING The use of this standard can involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of
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