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prNS-EN 1427:2024

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Merknad: Denne standarden har en ny utgave: NS-EN 1427:2015

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Omfang

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.

Dokumentinformasjon

  • Standard fra SN
  • Utgave: 2024-03
  • Versjon: 1
  • Varetype: NAT
  • ICS 75.140
  • ICS 91.100.50
  • National Committee SN/K 419

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