NEN-EN 1427:2024 Ontw. en

Draft standard
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27 Pages
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Publication date 2024-03-01
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English
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Bitumens and bituminous binders - Determination of the softening point - Ring and Ball method
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. 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.
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Extra information
Registration date
2024-03-27
Committee
353008
TC
CEN/TC 336
ICS code
75.140 Waxes, Bituminous Materials And Other Petroleum Products * 91.100.50 Binders. Sealing Materials
Related to
prEN 1427:2024, IDT
Keywords
Petroleum - Petroleum products - Petroleum technology - Construction materials - Bituminous products - Binding agents - Softening point - Civil engineering

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