INTRODUCTION Application This standard applies to the strapping of tanks involved in the purchase@ sale@ or exchange of oil; but it is applicable also to the internal operations of any company@ and such use is recommended.
API STD 2501-1961 history
1961API STD 2501-1961 CRUDE OIL TANK MEASUREMENT AND CALIBRATION (SECOND EDITION)
1955API STD 2501-1955 CRUDE-OIL TANK MEASUREMENT AND CALIBRATION (FIRST EDITION)