American Gas Association Report No. 8 (AGA8) application for GB3 Metering Project

For GB3 Metering Project, AGA8 refers to "AGA8-DC92" mentioned below.

The AGA8-DC92 (ISO 12213) standard is used to calculate the following:

a) Compressibility factor at Base conditions
b) Compressibility factor at Line conditions
c) Density at Line conditions
d) PTZ correction factor, (C)

Calculation inputs are as below:

a) Natural gas from the 10 gas component (output of the Encal 3000 Gas Chromatograph)
b) Base Pressure and Temperature
c) Line Pressure and Temperature.

The method of AGA8_DC92 in accordance of ISO 12213.

The module calculates also PTZ correction factor, C from which you can make further calculations:

- PTZ density, Volume and Total energy of gas

Reference:

http://www.gammadigital.hu/smart/html2/ENG/modules/aga8iso12213.html