ISO 15169:2003
Petroleum and liquid petroleum products - Determination of volume, density and mass of the hydrocarbon content of vertical cylindrical tanks by hybrid tank measurement systems

Standard No.

ISO 15169:2003

Release Date

2003

Published By

International Organization for Standardization (ISO)

Latest

ISO 15169:2003

Scope

This International Standard gives guidance on the selection, installation, commissioning, calibration and verification of hybrid tank measurement systems (HTMS) for the measurement of level, static mass, observed and standard volume, and observed and reference density in tanks storing petroleum and petroleum products in fiscal or custody transfer application. As it is a matter for the user to decide which measurements (i.e. volume, or mass or both) are used for custody transfer purposes, this International Standard includes an uncertainty analysis, with examples, to enable users to select the correct components of an HTMS to address the intended application. This International Standard is applicable to stationary, vertical cylindrical tanks storing liquid hydrocarbons with a Reid Vapour Pressure (RVP) below 103,42 kPa. This International Standard is not applicable to pressurized tanks or marine applications. NOTE 1 The term "mass" is used to indicate mass in vacuum (true mass). In the petroleum industry, it is not uncommon to use apparent mass (in air) for commercial transactions. Guidance is provided on the calculation of both mass and apparent mass in air (see Annex A). NOTE 2 The calculation procedures in this International Standard can also be applied to tanks with other geometries, which have been calibrated by a recognized oil-industry method (e.g. ISO 7507). Examples of uncertainty analysis for spherical and horizontal cylindrical tanks are given in Annex B.

ISO 15169:2003 Referenced Document

• ISO 11223-1:1995 Petroleum and liquid petroleum products - Direct static measurements - Contents of vertical storage tanks - Part 1: Mass measurement by hydrostatic tank gauging
• ISO 12185:1996 Crude petroleum and petroleum products - Determination of density - Oscillating U-tube method
• ISO 3170 Petroleum liquids - Manual sampling*， 2004-02-01 Update
• ISO 3675:1998 Crude petroleum and liquid petroleum products - Laboratory determination of density - Hydrometer method
• ISO 91-1:1992 Petroleum measurement tables; part 1: tables based on reference temperatures of 15 °C and 60 °F

ISO 15169:2003 history

• 2003 ISO 15169:2003 Petroleum and liquid petroleum products - Determination of volume, density and mass of the hydrocarbon content of vertical cylindrical tanks by hybrid tank measurement systems