BS ISO BRITISH STANDARD 15169:2003 Petroleum and liguid petroleum products - Determination of volume, density and mass of the hydrocarbon contentof vertical cylindrical tanks by hybrid tank measurement systems ICS 75.180.30 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT L British Standards BS ISO 15169:2003 National foreword This British Standard reproduces verbatim IS0 15169:2003 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee PTI/12, Petroleum measurement and sampling, to Subcommittee PTI/12/1, Static and dynamic petroleum measurement, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index", or by using the “Search" facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 31 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication This British Standard was published undertheauthority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 13February2004 C BSI 13 February 2004 ISBN 0 580 43441 9 BS ISO 15169:2003 INTERNATIONAL ISO STANDARD 15169 First edition 2003-12-01 Petroleum and liquid petroleum products Determination of volume, density and mass of the hydrocarbon content of vertical cylindrical tanks by hybrid tank measurement systems Pétrole et produits pétroliers liquides - Détermination du volume, de la masse volumique et de la masse d'hydrocarbures contenus dans les reservoirs cylindriques verticaux a I'aide de systemes hybrides de mesurage Reference number ISO 15169:2003(E) BS ISO 15169:2003 ii BS ISO 15169:2003 Contents Page Foreword 1 Scope, 2 Normative references..... 3 Terms and definitions . 4 General precautions.... .2 4.1 Safety precautions .... 4.2 Equipment precautions. 5 Selection and installation of hybrid tank measurement system equipment. 5.1 General .... 5.2 Automaticlevelgauge 5.3 Pressuresensor(s). 5.4 Automatictankthermometer(ATT) 5.5 Hybrid processor.... 5.6 Optional sensors .. 6 6 Accuracy effects of HTMS components .... 6.1 General .... 6.2 Accuracy effects of the ALG 6.3 Accuracy effects of the pressure sensor(s) 6.4 Accuracy effects of the ATT..... 7 HTMS measurement and calculations.... 7.1 General. 7.2 HTMSMode1 7.3 HTMS Mode2 8 Commissioning and initial field calibration ... 8.1 General .... .8 8.2 Initial preparation .... .9 8.3 Initial calibration and verification of HTMS components 8.4 Verificationofhybridprocessorcalculations. 8.5 Initial field verification of HTMS.... .10 9 Subsequent verification... 11 9.1 General ... 11 9.2 12 9.3 Adjustment during regular verification ... 9.4 Subsequent verification of HTMs in volume-based custody transfer application. .. 12 9.5 Subsequent verification of HTMs in mass-based custody transfer applications... 13 9.6 Handling out-of-tolerance situations during regular verification of HTMs in custody transfer application ... .14 AnnexA(informative)Calculationoverview. 17 Annex B (informative) Measurement accu