# The Gas (Calculation of Thermal Energy) Regulations 1996, Part II: Calculation of Compressibility Conversion Factor


The compressibility factor is:
(a) where the pressure of the gas at the meter does not exceed 2 bar, the number one; and
(b) where that pressure exceeds 2 bar, the number given by the following formula, namely:
0.99781-0.00000226M where
M=the number of millibars of that pressure.

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Source: https://www.legislation.gov.uk/uksi/1996/439/schedule/part/II (the official version)
Page: https://openlegislation.uk/gas-calculation-of-thermal-energy-regulations-1996/schedule/part-II
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.