DIN EN 13302:2010-06

This document (EN 13302:2010) has been prepared by Technical Committee CEN/TC 336 "Bituminous binders", the secretariat of which is held by AFNOR. This document supersedes EN 13302:2003, EN 13702-2:2003, EN 14896:2006. This document is a merged document based on EN 13302:2003, EN 13702-2:2003 and EN 14896:2006. The reason for merging the three standards is that: - the three standards described basically the same test method performed on three different types of bituminous materials originally developed by three different working groups almost parallel in time; - the minor insignificant differences in the three test methods were highly impractical for quality control/quality assurance in the laboratories using the same equipment for two or three of the mentioned standards. This European Standard specifies a method for the determination of the dynamic viscosity of a variety of bituminous binders by means of a rotating spindle apparatus (a coaxial viscometer); the bituminous binders include modified and unmodified bituminous binders, bituminous emulsions, cut-back and fluxed bituminous binders. Standard application temperatures are quoted, although the dynamic viscosity can be measured at other temperatures, if required. Similarly, viscosity is quoted at standard rates of shear, although additional measurements can be taken at varying shear rates, if required. WARNING - The use of this standard may involve the handling of hazardous materials and equipment, as well as carrying out dangerous operations. This standard does 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 to clarify prior to use, if regulatory limitations need to be taken into account. The torque applied to a spindle (for instance a cylinder) rotating in a special container containing the sample, is a measure of the relative resistance of the spindle to rotation and therefore provides a measure of the dynamic viscosity of the sample. It may be necessary to apply a form factor to yield the actual dynamic viscosity at the test temperature. The Committee responsible for this standard is NA 062-03-32 GA "Gemeinschaftsausschuss NMP/NABau/FGSV 7.2.0.1: Bitumen; Prüfverfahren und Anforderungen für Bindemittel" ("Joint working group NMP/NABau/FGSV 7.2.0.1: Bitumen; test methods and specifications of binders") of DIN.