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Norm

ÖNORM EN 12405-1

Issue date: 2011 04 01

Gas meters - Conversion devices - Part 1: Volume conversion

This European Standard specifies the requirements and tests for the construction, performance, safety and conformity of gas-volume electronic conversion devices associat...
Withdrawn: 2019 01 01
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 119 Pages
Language:
German | English | Download GER/ENG
This European Standard specifies the requirements and tests for the construction, performance, safety and conformity of gas-volume electronic conversion devices associated to gas meters, used to measure volumes of fuel gases of the 1st and 2nd families according to EN 437. This European Standard is intended for type testing, the detailed relevant provisions of which are given in Annex A. Only three kinds of conversion are treated in this European Standard: - conversion as a function of temperature only (called T conversion); - conversion as a function of the pressure and of the temperature with constant compression factor (called PT conversion); - conversion as a function of the pressure, the temperature and taking into account the compression factor (called PTZ conversion). This document is not relevant to temperature conversion integrated into gas meters which only indicate the converted volume.
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