ISO 7507-2:2022 PDF

Scope: This document specifies methods for the calibration of tanks above eight metres in diameter with cylindrical courses that are vertical. It provides two methods for determining the volumetric quantity of the liquid contained within a tank at gauged liquid levels. NOTE For optical-reference-line method, the optical (offset) measurements required to determine the circumferences can be taken internally or externally, provided that insulation is removed if tank is insulated. The methods are suitable for tilted tanks with up to 3 % deviation from the vertical provided that a correction is applied for the measurement tilt, as described in ISO 7507-1. These methods are alternatives to other methods such as strapping (ISO 7507-1) and the optical- triangulation method (ISO 7507-3).

ISO 7507-2:2022 Referenced Document

ISO 4269 Petroleum and liquid petroleum products - Tank calibration by liquid measurement - Incremental method using volumetric meters
ISO 7507-1:2003 Petroleum and liquid petroleum products - Calibration of vertical cylindrical tanks - Part 1: Strapping method
ISO 7507-4 Petroleum and liquid petroleum products - Calibration of vertical cylindrical tanks - Part 4: Internal electro-optical distance-ranging method

2022 ISO 7507-2:2022 Petroleum and liquid petroleum products — Calibration of vertical cylindrical tanks — Part 2: Optical-reference-line method or electro-optical distance-ranging method
2005 ISO 7507-2:2005 Petroleum and liquid petroleum products - Calibration of vertical cylindrical tanks - Part 2: Optical-reference-line method
1993 ISO 7507-2:1993 Petroleum and liquid petroleum products; calibration of vertical cylindrical tanks; part 2: optical reference line method