§ 31recommendation1 edition
Diaphragm gas meters
This Recommendation applies to diaphragm gas meters, that are gas volume meters in which the gas flow is measured by means of measuring chambers with deformable walls, including gas meters with a built-in temperature conversion device.
RecommendationR 31Superseded
- Latest edition
- 1995
- First published
- 1995
- URN
- urn:oiml:pub:r:31