Job Description:

• 1) Measures tanks of varying sizes and shapes to determine incremental and total liquid capacities, using one or both of following methods: Extends tape to encircle tanks at specified level to measure circumference.

• 2) Lowers tape to measure outside and inside heights at specified places.

• 3) Measures width, height, and thickness of projections, such as flanges, boltheads, shell plate, butt-welded joint, rivets, overflows, and floating roofs, using tapes, calipers, and straightedge.

• 4) Records measurements and calculates total and incremental tank capacities to prepare gauging tables, following formulas.

• 5) Measures tank, using liquid calibration methods.

• 6) Turns valves to admit measured quantities of liquid from calibrated container into tank being calibrated.

• 7) Lowers tape into tank at specified places and records measurements.

• 8) Repeats process to obtain measurements at various levels.

• 9) Takes temperature, samples, and records type of calibration liquid, using thermometer and sample container.

• 10) Prepares gauging tables, following formulas.

• 11) May prepare sketches and drawings of tanks and tank projections.