- Check the PPE, SCBA, fire extinguisher, assembly point, windsock, location etc. - Responsible for measurements of API gravity, gas gravity, pH, salinity, BS&W, H2S, etc. - Responsible for the operation of the GOR test unit. - Responsible for timely readings, mobilization, rig-up & rig-down. - Assist the Sr. Operator in all related job practices. - Report to the Supervisor.