# Commission Regulation (EU) 2015/703 of 30 April 2015 establishing a network code on interoperability and data exchange rules (Text with EEA relevance), Annex

Extent: E+W+S+N.I.

Conversion factors between reference conditions
Source: EN ISO 13443 ‘Natural gas — Standard reference conditions’
Reference temperature in °C (combustion, volume)
25/20 to 25/0
25/20 to 15/15
25/20 to 0/0
25/0 to 15/15
25/0 to 0/0
15/15 to 0/0
Volume-basis real superior calorific value
1,0738
1,0185
1,0766
0,9486
1,0026
1,0570
Volume-basis real inferior calorific value
1,0738
1,0176
1,0741
0,9477
1,0003
1,0555
Real Wobbe index
1,0736
1,0185
1,0764
0,9487
1,0026
1,0569

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Source: https://www.legislation.gov.uk/eur/2015/703/annex (the official version)
Page: https://openlegislation.uk/eu-regulation-2015-703/annex
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.