AS/NZS 2891.14.4:2013 PDF Download

AS/NZS 2891.14.4:2013 standard provides guidance on the calibration of the density system of a nuclear surface moisture-density gauge. The calibration is carried out by using standard blocks in the backscatter mode.

The standard specifies the procedure for deriving the calibration equation, which defines the relationship between the density count ratio and the field density. This calibration equation is essential for accurately measuring the density of asphalt materials in the field.

To determine the adjustment for the calibration equation, the standard requires measurements of field density to be conducted in accordance with AS/NZS 2891.14.1.2. This adjustment is specific to each material being tested, enabling accurate density measurements to be obtained for different asphalt materials.