BS ISO 21903:2020 - Refrigerated hydrocarbon fluids. Dynamic measurement. Requirements and guidelines for the calibration and installation of flowmeters used for liquefied natural gas (LNG) and other refrigerated hydrocarbon fluids

BS ISO 21903:2020

Refrigerated hydrocarbon fluids. Dynamic measurement. Requirements and guidelines for the calibration and installation of flowmeters used for liquefied natural gas (LNG) and other refrigerated hydrocarbon fluids

Status : Current   Published : February 2020

Format
PDF

Format
HARDCOPY



This document specifies the metrological and technical requirements for flowmeters intended to be used for the dynamic measurement of liquefied natural gas (LNG) and other refrigerated hydrocarbon fluids. For LNG static volume measurement used in custody transfer, see ISO 10976.

This document sets the best practice for the proper selection and installation of flowmeters in cryogenic applications and identifies the specific issues that can affect the performance of the flowmeter in use.

Moreover, it offers a calibration guideline for laboratory and on-site conditions (mass or volume) by either using LNG or other reference fluids. The choice of calibration fluid will depend on the capabilities of the available flow calibration facilities and the ability to achieve the required overall measurement uncertainty demanded by the intended application.

This document is applicable, but is not limited, to the use of Coriolis and ultrasonic flowmeters for dynamic measurements of LNG.

In principle, LNG and other refrigerated liquid hydrocarbons are considered in this document. Recommendations in this document are based on the available test results with LNG. These results are probably applicable to other cryogenic fluids.




Standard NumberBS ISO 21903:2020
TitleRefrigerated hydrocarbon fluids. Dynamic measurement. Requirements and guidelines for the calibration and installation of flowmeters used for liquefied natural gas (LNG) and other refrigerated hydrocarbon fluids
StatusCurrent
Publication Date12 February 2020
Normative References(Required to achieve compliance to this standard)ISO 10790, ISO 12242
Informative References(Provided for Information)ISO/IEC Guide 99, ISO 8943, ISO 6578, ISO 10976, ISO 12241, API 5.6, ISO/IEC 17025, ISO/IEC Guide 98-3, API 5.8
International RelationshipsISO 21903:2020
Draft Superseded By18/30350536 DC
DescriptorsMechanical testing, Testing, Dynamic testing, Physical sciences, Common terms, Fluid equipment, Measurement, Refrigerating, Hydrocarbons (aliphatic), Hydrocarbons (aromatic)
ICS75.180.30
Title in FrenchHydrocarbures liquides réfrigérés. Mesurage dynamique. Exigences et lignes directrices pour l’étalonnage et l’installation de débitmètres utilisés pour le gaz naturel liquéfié (GNL) et autres hydrocarbures liquides réfrigérés
CommitteeCPI/30/5
ISBN978 0 580 96203 5
PublisherBSI
FormatA4
DeliveryYes
Pages56
File Size2.904 MB
Price£254.00


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