Petroleum and Liquid Petroleum Products — Calibration of Vertical Cylindrical Tanks — Part 2: Optical Reference-Line Method
2017
Document Number: NL ISO 7507 2 : 2017
Sector: Petroleum and related Technologies
TC: NL TC 28
ICS: 75.180.30
Applies to tanks above 8 m in diameter with cylindrical courses that are substantially vertical. Provides a method for determining the volumetric quantity contained within a tank at gauged liquid levels using an optical plummet. The measurement required to determine the circumference may be made internally or externally. For tilted tanks with a deviation of up to 3 % from the vertical a correction as described in ISO 7507-1 may be applied.