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Oregon State University

Nuclear Gauge Training


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This material has been prepared by OSU Radiation Safety to familiarize researchers with requirements and considerations in the use of soil moisture/density gauges and other portable gauges. In conjunction with the material presented in written form, OSU Radiation Safety personnel are available to answer any questions at:


The training program is in two parts: information on gauge use and storage, and a training section covering the US Department of Transportation requirements for transporting nuclear gauges over public roads.

Upon completion of the training material, a gauge user will take an exam and sign an acknowledgement form.

Completion of the training program and exam are required before a user is allowed to work with or transport a nuclear gauge. Refresher training must be completed at intervals not to exceed 3 years.