OIML R 139
CNG Dispenser Verification System
Field-ready verification system for CNG dispensers using a traceable reference quantity.
TECHNICAL BASIS
Proposed system concept
Final configuration is selected after confirming DUT range/class, verification procedure, throughput, utilities and automation requirements.
Applicable recommendationOIML R 139
Reference-system targetTypically ≤1/3 of applicable R139 MPE
Working methodReference weighing or master quantity with pressure/temperature monitoring
SYSTEM ELEMENTS
Typical components
These elements are based on the brochure concept and are finalized project-by-project.
High-pressure reference system
High-pressure piping/fittings
Pressure & temperature transmitters
Data acquisition
Safety interlocks