NBN EN 1425:2012

This European Standard specifies a method for the determination of the perceptible properties of bituminous binders at ambient temperature prior to testing for other properties.
WARNING - The use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.