DIN Standards Committee Materials Testing
Bitumens and bituminous binders - Determination of the softening point - Ring and Ball method
Abstract
This document specifies a method for the determination of the softening point of bitumen and bituminous binders in the range of 28 °C to 150 °C. The method described also applies to bituminous binders that have been recovered from bituminous mixes, e.g. by extraction according to EN 12697 3 [1]. The change from mercury thermometers to electronic temperature devices has revealed that the temperature definition in the mercury thermometer has not been precise enough to make a correct, unbiased transfer to electronic devices. Care should be taken for softening points ring and ball above 100 °C as the condition may have changed from previous practice to present days testing equipment. Below approximately 100 °C the difference in temperature readings between electronic and mercury stem thermometer is acceptable compared to the repeatability of this test method.
Begin
2023-04-18
WI
00336211
Planned document number
prEN 1427
Responsible national committee
NA 062-03-32 AA - Bitumen; test methods and specifications of binders
Responsible european committee
CEN/TC 336/WG 1 - Bituminous binders for paving
draft standard
Bitumens and bituminous binders - Determination of the softening point - Ring and Ball method
2024-03
Order from DIN Media
previous edition(s)
Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method
2015-07
