Schemas

Every OIML CNML certificate validates against the layered JSON Schema stack: CORE →shared modules → per-Recommendation. All schemas are draft-07 with proper$ref, allOf, if/then rules. Browse any schema below to see the exact fields, enums, and constraints encoded for that Recommendation.

Core + modules

4 files

Core OIML certificate model: Certificate, Party, StructuredValue, Footnote, TestReport, etc.

Closed enums for UnitsDB quantities, prefixes, units (199 / 33 / 380). Anchored to BIPM Digital SI.

_units_local.yaml

OIML-local compound units via root_units composition (mg/L, m/min, …).

modules/d011_environmental.yaml

D 11:2013 environmental classes + 36-test catalog.

Other

5 recommendations

R21.yaml42 certs

OIML R21 (Taximeters) Certificate Schema

R99.yaml2 certs

OIML R99 (Breath Analyzers / Exhaust Gas Analyzers) Certificate Schema

R105.yaml1 certs

OIML R105 (Direct Mass Flow Measurement) Certificate Schema

R126.yaml9 certs

OIML R126 (Evidential breath analyzers) Certificate Schema

R136.yaml1 certs

OIML R136 (Liquid Other Than Water — Density Measurement) Certificate Schema

Fuel & Flow

4 recommendations

R31.yaml39 certs

OIML R31 (Diaphragm gas meters) Certificate Schema

R117.yaml85 certs

OIML R117 (Dynamic Measuring Systems for Liquids Other than Water) Certificate Schema

R137.yaml99 certs

OIML R137 (Dynamic Measuring Systems for Gases — Gas Meters) Certificate Schema

R139.yaml39 certs

OIML R139 (Compressed gaseous fuel dispensers — CNG and hydrogen) Certificate Schema

Electricity

1 recommendations

R46.yaml98 certs

OIML R46 (Active Electrical Energy Meters) Certificate Schema

Water & Liquid

1 recommendations

R49.yaml4 certs

OIML R49 (Water Meters) Certificate Schema

Weighing

9 recommendations

R50.yaml5 certs

OIML R50 (Continuous Totalising Automatic Weighing Instruments) Certificate Schema

R51.yaml100 certs

OIML R51 (Automatic Catchweighing Instruments) Certificate Schema

R60.yaml100 certs

OIML R60 (Load Cells) Certificate Schema

R61.yaml12 certs

OIML R61 (Automatic gravimetric filling instruments) Certificate Schema

R76.yaml100 certs

OIML R76 (Non-automatic weighing instruments) Certificate Schema

R106.yaml3 certs

OIML R106 (Automatic Rail-Weighbridges) Certificate Schema

R107.yaml3 certs

OIML R107 (Discontinuous Totalizing Automatic Weighing Instruments) Certificate Schema

R111.yaml1 certs

OIML R111 (Weights of Accuracy Classes E1, E2, F1, F2, M1, M2, M3) Certificate Schema

R134.yaml35 certs

OIML R134 (Automatic instruments for weighing road vehicles in motion) Certificate Schema

Length & Dimension

2 recommendations

R85.yaml99 certs

OIML R85 (Automatic level measuring instruments) Certificate Schema

R129.yaml3 certs

OIML R129 (Multidimensional Measuring Instruments) Certificate Schema