Bitumen and bituminous binders. Determination of the softening point. Ring and Ball method
沥青和沥青粘合剂 软化点的测定 环球法
发布日期:
2015-07-31
BS EN 1427:2015规定了测定沥青和沥青软化点的方法
28°C至150°C范围内的沥青粘合剂。技术警告-从水银温度计到电子温度装置的变化已经发生
发现水银温度计中的温度定义不够精确,无法
对电子设备进行正确、无偏的传输。应注意环上的软化点
以及高于100°C的球,因为条件可能已从以前的练习变为现在的练习
测试设备。低于约100°C时,电子设备之间的温度读数差
与本试验方法的重复性相比,水银柱温度计是可接受的。
【参考:ASTM E20集团】注:所述方法也适用于从沥青中回收的沥青粘合剂
混合,例如通过提取。警告-使用本欧洲标准可能涉及危险材料、操作和安全
设备本欧洲标准并非旨在解决所有相关的安全问题
与它的使用。本欧洲标准的用户有责任制定适当的标准
安全和健康实践,并在使用前确定监管限制的适用性。交叉引用:EN 58EN 12594EN 12597EN ISO 3696:1995ISO 3696:1987EN ISO 2592ISO 2592ASTM D36-95购买本文件时提供的所有当前修订版均包含在购买本文件中。
BS EN 1427:2015 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
with its use. It is the responsibility of the user of this European Standard to establish appropriate
safety and health practices and determine the applicability of regulatory limitations prior to use.Cross References:EN 58EN 12594EN 12597EN ISO 3696:1995ISO 3696:1987EN ISO 2592ISO 2592ASTM D36-95All current amendments available at time of purchase are included with the purchase of this document.