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ISO 7507-4:1995
Petroleum and liquid petroleum products -- Calibration of vertical cylindrical tanks -- Part 4: Internal electro-optical distance-ranging method
Specifies a method for the calibration of vertical cylindrical tanks having diameters greater than 5 m by means of internal measurements using an electro-optical distance-ranging instrument (EODR), and for the subsequent compilation of tank capacity tables. Not applicable to the calibration of abnormally deformed tanks or of noncircular tanks. Applicable to tanks tilted by <= 3 % from the vertical, provided a correction is applied for the measured tilt. Applicable to tanks with cone-up or cone-down bottoms, as well as to tanks with flat bottoms.
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International Organization for Standardization [iso]