Procedure for Typical Measuring, Sampling, and Testing

The procedure given here is the API method currently in effect for running a field tank of crude oil. Since there are many variables that would alter this method, this procedure is applicable on/~) under specific conditions. Technical Data used in the field explained in petroleum courses in Islamabad.   The tank is vertical, no pressurized, fixed roof with side outlets, and it is to be gauged by the innate method. The oil is less than 100 seconds at 100°F (Saybolt universal viscosity) and is a liquid at atmospheric temperature and pressure.

 A cup case thermometer is used to read temperature of the oil in the tank.. A thief is used to obtain fluid samples from the tank.. The API gravity scale hydrometer test method is used to determine the API gravity of the oil; the temperature of the oil has to be near 60°F (* 5°F).. The water and sediment in the oil is to be determined by the centrifuge method with a 203-mm [8-in.] cone-shaped tube. Some more details of petroleum courses in Islamabad are as under.

The following outline gives the sequence of steps to betaken and the key points to be noted at each step. . Isolate the tank to be checked.. Use face mask and fresh air bottles if H2S hazard exists.

 Ground your body to stair railing or tank shell before reaching the top. This prevents static electrical discharge in a hazardous area. . Stand to the side of the hatch when opening to permit wind to blow gas away from face.. Measure temperature. Suspend thermometer in oil tank. Thermometer should be 12 in. or more from tank shell and must be immersed in oil for 5 minutes.

Use an ASTM-approved, wood-back or corrosion resistant metal cup case. If atmospheric temperature differs by more than 20°F from that of the liquid in the tank, the cup case should be given at least two preliminary immersions. Empty the cup case after each  immersion. Rapidly withdraw the thermometer and read and record the temperature to the nearest 1°F. Note: The number of temperature measurements varies with the depth of the liquid. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join petroleum courses in Rawalpindi.