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  • BSI
    BS EN ISO 15971:2014 Natural gas. Measurement of properties. Calorific value and Wobbe index
    Edition: 2014
    $497.46
    / user per year

Description of BS EN ISO 15971:2014 2014

This InternationalStandard concerns the measurement of calorific value ofnaturalgas and natural gas substitutes by non-separative methods, i.e. methods that do not involve the determination of the gas composition nor calculation from it. It describes the principles of operation of a varietyof instruments in use forthis purpose, and providesguidelines for the selection, evaluation, performance assessment, installation andoperation of these.

Calorific values can be expressed on a mass basis, a molar basis or, more commonly,a volume basis. The working range for superior calorificvalue of natural gas, on the volume basis, is usuallybetween 30MJ/m3and 45 MJ/m3 at standard reference conditions (see ISO13443). The corresponding range for the Wobbeindex is usuallybetween 40 MJ/m3 and 60 MJ/m3.

This International Standard neitherendorses nor disputes the claims of any commercial manufacturer for theperformance of an instrument. Its central thesis is that fitness-for-purpose in anyparticular application (defined in terms of a set ofspecific operational requirements) can be assessed onlybymeans of a well-designed programme of experimental tests. Guidelines are provided for the proper content of these tests.



Standard NumberBS EN ISO 15971:2014
TitleNatural gas. Measurement of properties. Calorific value and Wobbe index
StatusDefinitive
Publication Date2014-05-31
Identical National Standard OfISO 15971:2008, EN ISO 15971 (ISO 15971:2008) AS
CorrectsBS ISO 15971:2008
DescriptorsApproval testing, Gaseous fuels, Calorific value, Heat-measuring instruments, Density, Fuels, Relative density, Natural gas, Combustion, Performance, Performance testing, Heat measurement, Calorimeters
ICS75.060 Natural gas
CommitteePTI/15
ISBN978 0 580 83401 1
PublisherBSI
Pages62

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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