Sets out the method for the calibration of a nuclear surface moisture-density gauge for field use against the results obtained by the method for the determination of the water content of an aggregate (Test 3.1) and the method contained in Test 4.1.1.

NZS 4407.4.2.3:1991
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Methods of testing road aggregates – Field tests – The field water content and field dry density of compacted aggregate – Test 4.2.3 Calibration of nuclear surface moisture-density gauge for field use
Standards New Zealand , 05/31/1991