2. Innovation and research
3. Hydrogen

Brief description

This Technical Rule applies to custody transfer metering stations in which gases as defined in DVGW Code of Practice G 260 are measured and which are equipped with state correctors. It regulates the calculation of real gas factors and compressibility numbers using the SGERG-88, SGERG-mod-H2 and AGA8-92DC methods as well as the parameter selection of the volume corrector. This worksheet considers natural gas-hydrogen mixtures up to a mass fraction x(H2) = 0.3 as well as gas mixtures with the base gas hydrogen (x(H2) ≥ 0.98). Deviations from this technical rule require the approval of the responsible verification authority. For other gases or gas mixtures or if the limits specified in the rule are exceeded, this Technical Rule shall be applied accordingly. The procedure must be agreed with the responsible verification authority and the Physikalisch-Technische Bundesanstalt (PTB).

Issue date

2022-08

Developing committee

DVGW G-TK-1-5 - Gas measurement and billing

National committee

G-AG-1-5-3-1

National mirror committee

DVGW G-TK-1-5 - DVGW Gas measurement and billing

areas / working committees

Quality Infrastructure

topic / sub working committees

Measurement technology

topics / working groups

Hydrogen measurement technology and billing methods