All owners and operators of Nuclear Density/ Moisture gauges are required under the code of practise and safety guide ( Portable Density / moisture gauges containing Ratioactive Sources – series 5) to measure not less than annually, the radiation levels emmited from the device at distances of 50mm and 1000mm from each face of the meter. Ground Science operate their own calibrated survey meter and are happy to provide a testing service to all gauge holders. To book your Nuclear Density / Moisture gauge test please contact Chris Senserrick at our Thomastown laboraotry facility.