OIML R 137-1: 2006 (E) Gas meters. Part 1: Requirements

Издательство: Bureau International de Métrologie Légale.
Количество страниц: 48.Foreword
This publication - reference OIML R 137-1, Edition 2006 - was developed by Technical
Subcommittee TC 8/SC 8 Gas meters. It was approved for final publication by the International
Committee of Legal Metrology in 2006 and will be submitted to the International Conference of
Legal Metrology in 2008 for formal sanction. It supersedes the previous editions of R 31 (1995)
and R 32 (1989) and partially supersedes OIML R 6 (1989).Scope
This Recommendation applies to gas meters based on any principle, used to meter the quantity
of gas in volume, mass or energy units that has passed through the meter at operating conditions.
It applies also to gas meters intended to measure quantities of gaseous fuels or other gases,
except gases in the liquefied state and steam.
Dispensers for compressed natural gas (CNG dispensers) are also excluded from the scope of
this Recommendation.
This Recommendation also applies to correction devices, and other electronic devices that can
be attached to the gas meter. However, provisions for conversion devices, either as part of the
gas meter or as a separate instrument, or provisions for devices for the determination of the
superior calorific value and gas metering systems consisting of several components, are defined
in the draft OIML Recommendation on Measuring systems for gaseous fuel.