Precision Measurement follows the API standard for meter proving and tank calibration on every job it does and all its employees are trained in this area.  Most companies that strap tanks have employees that perform other job functions and strapping tanks are a side job, with little emphasis on strictly following the API standards. These employees have not been properly trained and are likely not following API standards, leaving strappings and tank tables inaccurate.  Strict procedure to the API standards are not followed in the oil patch and precision and accuracy are key.
Tank Strapping - Tank Calibration