Norm

NEN-EN 1427:2015 en

Bitumen en bitumineuze bindmiddelen - Bepaling van het verwekingspunt - Ring- en kogelmethode

49,30

Over deze norm

Status Definitief
Aantal pagina's 15
Commissie Bitumen
Gepubliceerd op 01-07-2015
Taal Engels
NEN-EN 1427 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]

Details

ICS-code 75.140
91.100.50
Nederlandse titel Bitumen en bitumineuze bindmiddelen - Bepaling van het verwekingspunt - Ring- en kogelmethode
Engelse titel Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method
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