1、January 2015 Translation by DIN-Sprachendienst.English price group 11No 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).IC
2、S 75.140; 91.100.50!%?DE“2283334www.din.deDDIN EN 12595Bitumen and bituminous binders Determination of kinematic viscosity;English version EN 12595:2014,English translation of DIN EN 12595:2015-01Bitumen und bitumenhaltige Bindemittel Bestimmung der kinematischen Viskositt;Englische Fassung EN 12595
3、:2014,Englische bersetzung von DIN EN 12595:2015-01Bitumes et liants bitumineux Dtermination de la viscosit kinmatique;Version anglaise EN 12595:2014,Traduction anglaise de DIN EN 12595:2015-01SupersedesDIN EN 12595:2007-06www.beuth.deDocument comprises 20 pagesIn case of doubt, the German-language
4、original shall be considered authoritative.12.14DIN EN 12595:2015-01 2 A comma is used as the decimal marker. National foreword This document (EN 12595:2014) has been prepared by Technical Committee CEN/TC 336 “Bituminous binders” (Secretariat: AFNOR, France). The responsible German bodies involved
5、in its preparation were the DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing) and the DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineering), Joint Committee NA 062-03-32 GA Bitumen; Prfverfahren und Anforderungen fr die Bindemittel. Where
6、the International Standards referred to are not also DIN EN ISO Standards, there are no national standards available, except for the following: EN ISO 3696 DIN ISO 3696 Amendments This standard differs from DIN EN 12595:2007-06 as follows: a) the scope has been extended to include other temperatures
7、 with known calibration constants; b) requirements for the temperature measuring device have been revised; c) the standard has been editorially revised. Previous editions DIN EN 12595: 2000-04, 2007-06 National Annex NA (informative) Bibliography DIN ISO 3696, Water for analytical laboratory use Spe
8、cification and test methods EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12595 November 2014 ICS 75.140; 91.100.50 Supersedes EN 12595:2007English Version Bitumen and bituminous binders - Determination of kinematic viscosity Bitumes et liants bitumineux - Dtermination de la viscosit kinmatiq
9、ue Bitumen und bitumenhaltige Bindemittel - Bestimmung der kinematischen Viskositt This European Standard was approved by CEN on 16 August 2014. 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
10、national standard without any alteration. Up-to-date lists and bibliographical references 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
11、 version in any other language made by translation under the responsibility of a CEN 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, Cypr
12、us, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kin
13、gdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12595:
14、2014 EEN 12595:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 5 5 Apparatus .5 6 Preparation of test samples 6 7 Procedure .7 8 Calculation 8 9 Expression of results 8 10 Precision .8 11 Test report 9 Annex A (normative) Specifications o
15、f viscometers 10 Annex B (informative) Calibration of viscometers 14 Annex C (informative) Characteristics of thermometers 17 Bibliography . 18 DIN EN 12595:2015-01 EN 12595:2014 (E) 3 Foreword This document (EN 12595:2014) has been prepared by Technical Committee CEN/TC 336 “Bituminous binders”, th
16、e 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 May 2015 and conflicting national standards shall be withdrawn at the latest by May 2015. Attention is draw
17、n 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 12595:2007. In comparison with EN 12595:2007, the following significant cha
18、nges have been made: changed/added wording of the Warning in the Scope; EN 12607-2, Bitumen and bituminous binders Determination of the resistance to hardening under the influence of heat and air Part 2: TFOT Method was added as a normative reference in Clause 2; the reference to mercury thermometer
19、 has been deleted (see subclause 5.2) and Annex C is informative; alternative cleaning procedure added as optional in subclause 7.2. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal
20、Regulations, the 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, Irelan
21、d, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12595:2015-01 EN 12595:2014 (E) 4 1 Scope This European Standard specifies a method for the determination of the kinem
22、atic viscosity of bituminous binders at 60 C and 135 C, in a range from 6 mm2/s to 300 000 mm2/s. Other temperatures are possible if calibration constants are known. Bituminous emulsions are not covered within the scope of this method. NOTE Emulsions containing bituminous binders are not considered
23、to be covered by this method. The method can be used for recovered and/or stabilized binders obtained from emulsions. Results for this method can be used to calculate dynamic viscosity when the density of the test material is known or can be determined. WARNING Use of this European Standard can invo
24、lve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this European Standard to identify the hazards and assess the risks involved in performing this test metho
25、d and to implement sufficient control measures to protect individual operators (and the environment). This includes appropriate safety and health practices and determination of the applicability of regulatory limitations prior to use. 2 Normative references The following documents, in whole or in pa
26、rt, 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 document (including any amendments) applies. EN 58, Bitumen and bituminous binders - Sampling
27、bituminous binders EN 12594, Bitumen and bituminous binders - Preparation of test samples EN 12607-2, Bitumen and bituminous binders - Determination of the resistance to hardening under the influence of heat and air - Part 2: TFOT Method EN ISO 2592, Determination of flash and fire points - Clevelan
28、d open cup method (ISO 2592) EN ISO 3696:1995, 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 kinematic viscosity ratio between the dynamic viscosity and th
29、e density of a liquid at the temperature of viscosity measured Note 1 to entry: Kinematic viscosity is a measure of a liquids resistance to flow under gravity. Note 2 to entry: The Sl unit of kinematic viscosity is m2/s; for practical use, a sub-multiple (mm2/s) is more convenient. 3.2 density mass
30、of a liquid divided by its volume Note 1 to entry: When reporting density, the unit of density used, together with the temperature, is explicitly stated, for example kilogram per cubic metre. DIN EN 12595:2015-01 EN 12595:2014 (E) 5 Note 2 to entry: The SI unit of density is kg/m3. 3.3 dynamic visco
31、sity ratio between the applied shear stress and the velocity gradient Note 1 to entry: Dynamic viscosity is a measure of a liquids resistance to flow, and is commonly called the viscosity of the liquid. Note 2 to entry: The SI unit of dynamic viscosity is Pas. 3.4 Newtonian liquid liquid with a visc
32、osity that is independent of the rate of shear Note 1 to entry: The constant ratio of the shear stress to the velocity gradient is the dynamic viscosity of the liquid. If this ratio is not constant, the liquid is non-Newtonian. 4 Principle The time for a fixed volume of the liquid to flow through th
33、e capillary of a calibrated glass capillary viscometer under an accurately reproducible head and at a closely controlled temperature is determined (efflux time). The kinematic viscosity is calculated by multiplying the efflux time in seconds by the viscometer calibration factor. 5 Apparatus Usual la
34、boratory apparatus and glassware, together with the following: 5.1 Viscometer, CANNON-FENSKE, BS/IP/RF and the Zeitfuchs Cross-Arm viscometers, capillary-type, made of borosilicate glass, suitable for this method are described in Figure A.1, Figure A.2 and Figure A.3, and Table A.1, Table A.2 and Ta
35、ble A.3. Other viscometers are allowed if test results obtained are comparable. Calibrated viscometers are available from commercial suppliers. Details regarding the calibration of viscometers are given in Annex B. 5.2 Temperature measuring device A temperature measuring device (combining sensor and
36、 reading unit) shall: have a range from at least 55 C to 140 C, be readable to 0,05 C or less, and have an accuracy of 0,1 C or better. Sensors based on platinum resistance thermometers have been found suitable but other principles are also allowed. The thermal response time of the sensor shall be c
37、omparable with the former used reference (see informative Annex C). The temperature measuring device shall be calibrated regularly. A solid stem mercury thermometer (which used to be the former reference thermometer as described in Annex C) is also allowed if national regulations permit its use. The
38、 specified thermometers shall be standardized at total immersion; that is immersion to the top of the mercury column with the remainder of the stem and the expansion chamber at the top of the thermometer DIN EN 12595:2015-01 EN 12595:2014 (E) 6 exposed to room temperature. The practice of completely
39、 submerging the thermometer is not recommended. When thermometers are completely submerged, corrections for each individual thermometer based on calibration under conditions of complete submergence are determined and applied. If the thermometer is completely submerged in the bath during use, the pre
40、ssure of the gas in the expansion chamber will be higher or lower than during standardization, and can cause high or low reading on the thermometer. It is essential that liquid-in-glass thermometers are recalibrated periodically and those official corrections be adjusted as necessary to conform to a
41、ny changes in temperature readings. The thermometer shall be read, estimating the reading to 0,1 C. Thermometers should be checked at regular intervals. A commonly used procedure given in method ASTM E77 4 applies a correction that is based on changes in the ice point calibration. When measuring and
42、 controlling nominally constant temperatures, as in this test method, the thermal response time can be rather high (e.g. slow response to a change in temperature). Care shall be taken to consider this aspect since low thermal response times of the sensor can indicate greater cyclic variations than t
43、he bituminous material in practise experiences. 5.3 Bath, suitable for immersion of the viscometer so that the liquid reservoir or the top of the capillary, whichever is uppermost, is at least 20 mm below the top of the bath level, and with provisions for visibility of the viscometer and the thermom
44、eter. Firm supports for the viscometer shall be provided, or the viscometer shall be an integral part of the bath. The efficiency of the stirring and the balance between heat losses and heat input shall be such that the temperature of the bath medium does not vary by more than 0,3 C (measurement at
45、60 C) or 0,5 C (measurement at 135 C) over the length of the viscometer, or from viscometer to viscometer in the various bath positions. Water, conforming to the grade 3 of EN ISO 3696:1995, is a suitable bath liquid for determinations at 60 C. USP white oil or any paraffinic or silicone oil with a
46、flash point above 215 C has been found suitable for determination at 135 C. The flash point is determined in accordance with EN ISO 2592. 5.4 Timer, stop watch (spring or battery driven) graduated in divisions of 0,1 s or less and accurate to 0,5 s over 1 000 s when tested over intervals of not less
47、 than 15 min. 5.5 Electrical timing devices, for use only on electrical circuits the frequencies of which are accurate to 0,5 s over 1 000 s or better. NOTE Alternating currents, the frequencies of which are intermittently and not continuously controlled, as provided by some public power systems, ca
48、n cause large errors, particularly over short timing intervals, when used to actuate electrical timing devices. 5.6 Automatic or semi-automatic equipment, are allowed providing that they meet the specifications for temperature regulation and time accuracy described in Clause 5 and have been shown to
49、 achieve the same precision as given in Clause 10 and are fully calibrated. 6 Preparation of test samples The laboratory sample shall be taken in accordance with EN 58. Prepare the sample in accordance with EN 12594. Bring the viscometer and the sample to the test temperature (in order to avoid correction of constants of the viscometer). Stir the sample thoroughly without entrapment of air. If the temperature has dropped to 30 C or more below the test temperature, reheat the sample. Immediately charge the viscometer, or, if
