# Gas meters and volume conversion devices · Annex IV · gas meter with temperature conversion, 30 °C range around the specified temperature — Accuracy classes and maximum permissible errors for trade measuring instruments For Gas meters and volume conversion devices, annex is Annex IV; condition is gas meter with temperature conversion, 30 °C range around the specified temperature; maximum permissible error is increased by 0,5 %, recorded from its source on 2026-09-01. - **Instrument type:** Gas meters and volume conversion devices _(verified: appears in its own passage below)_ - **Annex:** Annex IV _(verified: appears in its own passage below)_ - **Condition:** gas meter with temperature conversion, 30 °C range around the specified temperature _(our reading, not quoted from the source)_ - **Maximum permissible error:** increased by 0,5 % _(verified: appears in the quote below)_ ## What the source says > For a gas meter with temperature conversion, which only indicates the converted volume, the MPE of the meter is increased by 0,5 % in a range of 30 °C extending symmetrically around the temperature specified by the manufacturer that lies between 15 °C and 25 °C. Outside this range, an additional increase of 0,5 % is permitted in each interval of 10 °C. ## Where each value comes from This source states these in separate places, so each value is shown with the passage that states it. ### Instrument type > ANNEX IV GAS METERS AND VOLUME CONVERSION DEVICES (MI-002) The relevant requirements of Annex I, the specific requirements of this Annex and the conformity assessment procedures listed in this Annex, apply to gas meters and volume conversion devices defined below, intended for residential, commercial and light industrial use. ### Annex > ANNEX IV GAS METERS AND VOLUME CONVERSION DEVICES (MI-002) ## Source - https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32014L0032 Last verified: 2026-09-01. Review by: 2027-09-01. Part of [Accuracy classes and maximum permissible errors for trade measuring instruments](https://referencesource.org/legal-metrology-accuracy-classes/).