RO
SR EN 1427:2015
Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method
This European Standard specifies a method for the determination of the softening point of bitumen and bituminous binders in the range of 28 °C to 150 °C. Technical warning - 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 practise to present days testing equipment. Below approx. 100 °C the difference in temperature readings between electronic and mercury stem thermometer is acceptable compared to the repeatability of this test methods. [Reference: ASTM E20 Group] NOTE The method described is also applicable to bituminous binders that have been recovered from bituminous mixes, e.g. by extraction. WARNING — Use of this European Standard can involve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated wi
Status :
Valid
Approval date : 12/23/2015
Number of pages : 20
ICS : 75.140 Waxes, bituminous materials and other petroleum products,91.100.50 Binders. Sealing materials
Technical Committee : 187 - Roads
- Replaces SR EN 1427:2007
- Normative reference SR EN 58:2012
- Normative reference SR EN 12594:2015
- Normative reference SR EN 12597:2014
- Normative reference SR EN ISO 3696:2002