The following procedures should be adopted for calibration:
- Measure volume of tank.
- For square tanks calculate volume = height x length x width.
- For round tanks calculate volume = radius x radius x height x 3.142.
- For measurements in metres multiply volume (cubic metres) by 1000 to provide volume in litres.
- For measurements in feet multiply volume (cubic feet) by 6.24 to provide volume in gallons.
- Measuring jugs and scales should be specific for the job and not used for any other purpose.