API MPMS 2.2D:2003 (R2014)

This part specifies a method for the calibration of upright cylindrical tanks having diameters greater than 5 m by means of internal measurements using an electro-optical distance-ranging instrument, and for the subsequent compilation of tank capacity tables. This method is known as the internal electro-optical distance-ranging (EODR) method. This part of Chapter 2 is not applicable to the calibration of abnormally deformed (e.g. dented) tanks or of noncircular tanks. This part of Chapter 2 is applicable to tanks tilted by < or = 3 % from the vertical, provided a correction is applied for the measured tilt as described in Chapter 2.2A. This part of Chapter 2 is applicable to tanks with coneup or cone-down bottoms, as well as to tanks with flat bottoms.