This test method describes a procedure for measuring the apparent viscosity of bituminous binders at different temperatures from 38 to 260°C using a rotary viscometer and a thermal chamber (Thermoses) for a controlled temperature and to maintain precisely this one.
MTI laboratories are accredited by TAF (ISO/IEC 17025) to perform testing standard CNS 14186 for Viscosity Determination Of Asphalt At Elevated Temperatures Using A Rotational Viscometer.