2. Innovation and research
3. Hydrogen

Brief description

This document describes the specific requirements for determining the volume in the standard state. For the purposes of this worksheet, the volume in the standardized state is determined using the following measuring devices that comply with calibration law: Gas meters that measure and display the volume in operating state Vb. Temperature converting (TC) gas meters that measure and display the volume converted to the temperature T = 288.15 K ≙ 15 °C, but do not convert the pressure. Measuring devices that measure and display the volume in the standard state pn = 1013.25 mbar, Tn = 273.15 K ≙ 0 °C. This also includes gas meters according to a) in conjunction with a volume corrector, which converts the measured volume to the volume in the standard state. A measuring point operator who uses measuring devices that deviate from this must, in agreement with the competent verification authority and in consultation with the PTB, define a procedure for determining the volume in the standardized state or the energy. If necessary, the procedure must be published.

Issue date

2020-08

Developing committee

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

areas / working committees

Quality Infrastructure

topic / sub working committees

Measurement technology

topics / working groups

Hydrogen measurement technology and billing methods