ISO 19970:2017
Current
The latest, up-to-date edition.
Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels — Metering of gas as fuel on LNG carriers during cargo transfer operations
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English
24-05-2017
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ISO 19970:2017 specifies minimum requirements to quantify the boil-off gas (BOG) consumed on liquefied natural gas (LNG) carriers for their own functions, notably for power generation, during cargo transfer operations. BOG in this document refers to the low molecular gas returned from shore tanks to ships' tanks and the gas produced in ships' cargo tanks.
ISO 19970:2017 provides requirements for the metering of BOG and the subsequent calorific value calculations which can be taken into account when the energy transferred during cargo transfer is determined. This document also introduces performance requirements and calibration of the elements included in the BOG measurement system. A flowmeter of any type may be used to measure BOG as long as it meets the performance requirements specified in this document.
ISO 19970:2017, with some modification, can also be applied to the measurement of BOG consumed by LNG carriers at sea.
| DevelopmentNote |
Supersedes ISO/DIS 19970. (05/2017)
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| DocumentType |
Standard
|
| Pages |
10
|
| ProductNote |
THIS STANDARD ALSO REFERS TO OIML R 137-2
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| PublisherName |
International Organization for Standardization
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| Status |
Current
|
| Standards | Relationship |
| BS ISO 19970:2017 | Identical |
| ISO 6976:2016 | Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition |
| ISO 5168:2005 | Measurement of fluid flow — Procedures for the evaluation of uncertainties |
| ISO 8310:2012 | Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels — General requirements for automatic tank thermometers on board marine carriers and floating storage |
| ISO 1998-6:2000 | Petroleum industry — Terminology — Part 6: Measurement |
| ISO 14511:2001 | Measurement of fluid flow in closed conduits Thermal mass flowmeters |
| ISO 18132-1:2011 | Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels — General requirements for automatic tank gauges — Part 1: Automatic tank gauges for liquefied natural gas on board marine carriers and floating storage |
| IEC 60092-504:2016 | Electrical installations in ships - Part 504: Automation, control and instrumentation |
| ISO/IEC Guide 99:2007 | International vocabulary of metrology Basic and general concepts and associated terms (VIM) |
| ISO 5167-2:2003 | Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 2: Orifice plates |
| OIML R 137-1 : 2006 | GAS METERS - PART 1: REQUIREMENTS |
| ISO 5167-1:2003 | Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements |
| ISO 10790:2015 | Measurement of fluid flow in closed conduits Guidance to the selection, installation and use of Coriolis flowmeters (mass flow, density and volume flow measurements) |
| ISO 6578:2017 | Refrigerated hydrocarbon liquids — Static measurement — Calculation procedure |
| ISO 17089-1:2010 | Measurement of fluid flow in closed conduits - Ultrasonic meters for gas Part 1: Meters for custody transfer and allocation measurement |
| ISO 2186:2007 | Fluid flow in closed conduits — Connections for pressure signal transmissions between primary and secondary elements |
| IEC 60092-101:1994+AMD1:1995 CSV | Electrical installations in ships - Part 101: Definitions and general requirements |
| ISO 10976:2015 | Refrigerated light hydrocarbon fluids — Measurement of cargoes on board LNG carriers |
| API TR 2571 : 2011 | FUEL GAS MEASUREMENT |
| OIML R 140 : 2007 | MEASURING SYSTEMS FOR GASEOUS FUEL |
| ISO 4006:1991 | Measurement of fluid flow in closed conduits — Vocabulary and symbols |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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