BS EN 12847-2009 沥青和沥青胶粘剂.测定沥青乳液的沉降倾向.pdf
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1、BS EN 12847:2009 BS 2000-485:2009 his British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2009 Energy Institute, under the brand of IP, publishes and sells all Parts of BS 2000, and all BS EN petroleum test methods that would be Part of BS 200
2、0, both in its annual publication “Standard methods for analysis and testing of petroleum and related products and British Standard 2000 Parts” and individually. Further information is available from: Energy Institute, 61 New Cavendish Street, London W1G 7AR. Tel: 020 7467 7100. Fax: 020 7255 1472.
3、W - - - - - - - - - - 7 7 - 7- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - W W D - w - - - - EN 12847:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 4 5 Reagents and materials 4 6 Apparatus .5 7 Sampling .5
4、8 Procedure .5 9 Calculation 6 10 Expression of results 6 11 Precision .6 12 Test report 7 Bibliography 9 EN 12847:2009 (E) 3 Foreword This document (EN 12847:2009) has been prepared by Technical Committee CEN/TC 336 “Bituminous binders”, the secretariat of which is held by AFNOR. This European Stan
5、dard 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of an identical text or by endorsement, at the latest by September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the elements
6、 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 12847:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun
7、tries 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, Slovenia, Spa
8、in, Sweden, Switzerland and the United Kingdom. EN 12847:2009 (E) 4 1 Scope This European Standard specifies a method for the determination of the settling tendency of bituminous emulsions. WARNING The use of this standard can involve hazardous materials, operations and equipment. This standard does
9、 not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 2 Normative references The following referenc
10、ed 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 any amendments) applies. EN 58, Bitumen and bituminous binders Sampling bituminous binders EN 14
11、28, Bitumen and bituminous binders Determination of water content in bitumen emulsions Azeotropic distillation method EN 1431, Bitumen and bituminous binders Determination of recovered binder and oil distillate from bitumen emulsions by distillation EN 12594, Bitumen and bituminous binders Preparati
12、on of test samples EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1987) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 settling tendency difference in water content of the top layer and the bottom l
13、ayer of a prescribed volume of sample after standing for a specified time at ambient temperature 4 Principle The sample is allowed to stand for the specified time at ambient temperature in a stoppered graduated cylinder, after which the water contents of the top and bottom layers are determined eith
14、er using EN 1428 or EN 1431. The settling tendency is calculated as the difference between the two water contents. 5 Reagents and materials 5.1 General Use only reagents of recognised analytical grade and water conforming to grade 3 of EN ISO 3696. 5.2 Cleaning agents As used conventionally in the l
15、aboratory. EN 12847:2009 (E) 5 6 Apparatus Usual laboratory apparatus and glassware, together with the following: 6.1 Stoppered glass graduated cylinder, 600 ml capacity, with one division mark at 500 ml. This vessel is modified with two closable side tubes. The dimensions are shown in Figure 1. The
16、 two side tubes may be closed either by a rubber or glass stopper, or by a rubber tube with a pinch-clamp cock. 6.2 Distillation apparatus, as described in EN 1428 or EN 1431, depending on the method chosen for the determination of water content. 6.3 Beakers of appropriate capacity. 7 Sampling The m
17、aterial under test shall be sampled in accordance with EN 58 and prepared in accordance with EN 12594. 8 Procedure 8.1 General Carry out the procedure under normal laboratory conditions. NOTE “Normal laboratory conditions“ means that the range of temperature is 18 C to 28 C. 8.2 Test The number of t
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- BS EN 12847-2009 沥青和沥青胶粘剂.测定沥青乳液的沉降倾向 12847 2009 沥青 胶粘剂 测定 乳液 沉降 倾向
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