SANAS T1018
Public test guide
Measures the hardness or consistency of bitumen by the depth a standard needle enters under controlled conditions.
Plain-language explanation
The project specification controls the exact method and acceptance requirement.
A conditioned binder sample is penetrated by a standard needle for a specified time, load and temperature.
Prepared binder cup, penetration apparatus, standard needle, timing and temperature-control bath.
Penetration depth in the method’s specified units.
Supports binder grading, quality control and comparison of recovered or supplied bitumen.
Typical test sequence
Prepare and condition the binder surface
Set the needle, load, time and temperature
Take the required readings and report the average
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