ISO/AWI 26334

Measurement of gas flow in closed conduit — Weighing method

Scope

This document specifies the principle, method and procedure for measuring the gas mass flow of weighing method standard facility flowing to a pipe in a weighing vessel at known time intervals, as well as the method for estimating the uncertainty associated with the measurement.
It is applicable to static weighing method gas flow standard facility (hereinafter referred to as the "facility") for the gas pressure range above 0.3MPa.