ISO 23505:2025

International Standard   Current Edition · Approved on 04 August 2025

Petroleum and liquid petroleum products — Calibration of spherical tanks — External electro-optical distance-ranging method

ISO 23505:2025 Files

English 25 Pages
Current Edition
OMR 66.81

ISO 23505:2025 Scope

This document specifies a method for the calibration of spherical tanks with a radius greater than 1 m by means of external measurements using an electro-optical distance-ranging instrument (EODR). It also specifies the subsequent calculation and the compilation of tank capacity tables.

This document applies to spherical tanks built above ground, that are non-insulated, single-shell and with a radial variation up to 1 %. The method specified in this document can also apply to spherical tanks built above the deck when the carrying ship is in the dock.

This document does not apply to the calibration of spheroidal tanks.

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