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About the OIML
# Introduction and Structures  
# Membership  
# Headquarters (BIML)  
# Developing Countries  
# Organizations in Liaison  
# Memoranda of Understanding (MoU)  
# VIP and Awards Section  
# Becoming an OIML Member  

# OIML R, D, V, G, B, E, S  
# Translations of OIML Publications  
# Final Drafts  
# Bulletin  
# Conference and CIML Minutes  
# Reference Documents, Brochures  

Technical Structures
# Technical Committees (TC/SC)  
# Committee Drafts  
# TC/SC Web Sites  
# Technical Liaisons  
# Reports and Statistics  
# WTO TBT Notifications  

OIML Systems
# Introduction  
# Mutual Acceptance Arrangement - MAA  
# Registered Certificates  

National Regulations
# Inquiry results: OIML R  

Meetings, Seminars, Events
# OIML Meetings  
# Conference and CIML web sites  
# OIML Seminars  
# Events of Interest  

Restricted Access
# Members' Access  
# Presidential Council  

OIML Certificate System for Measuring Instruments
# Instrument Categories
# Issuing Authorities
# Recipients
# Certificates List up to 2004-12-31
# Certificates List from 2005-01-01

Instrument categories (OIML Recommendations) applicable within the OIML Certificate System

Length and speed
     R 129  Multi-dimensional measuring instruments
     R 136  Measurement of area of leathers
Static liquid measurement
     R 85  Automatic level gauges for fixed storage tanks
Dynamic liquid measurement
     R 49  Water meters
     R 81  Measuring systems for cryogenic liquids
     R 105  Direct mass flow measuring systems
     R 117  Fuel dispensers for motor vehicles (R 117 + R 118)
     R 118  Fuel dispensers for motor vehicles (R 117 + R 118)
Gas measurement
     R 137  Gas volume meters
     R 46  Active electrical energy meters for direct connection
Weighing instruments
     R 50  Continuous totalizing automatic weighing instruments
     R 51  Automatic catchweighing instruments
     R 60  Load cells
     R 61  Automatic gravimetric filling instruments
     R 76  Point of Sales devices for non automatic weighing instruments
     R 76  Non automatic weighing instruments
     R 76  Indicators for non automatic weighing instruments
     R 76  Load receptors for non automatic weighing instruments
     R 76  Printing devices for non automatic weighing instruments
     R 98  Indicators for non automatic weighing instruments
     R 106  Automatic rail weighbridges
     R 107  Discontinuous totalizing automatic weighing instruments
     R 134  In motion road weighing instruments
     R 82  Gas chromatographs for measurement of pesticides
     R 83  Gas chromatographs / Mass spectrometers
     R 99  Exhaust gas analysers
     R 112  High performance liquid chromatographs
     R 113  Portable gas chromatographs
     R 116  Plasma atomic emission spectrometers
     R 123  X-ray fluorescence spectrometers
     R 143  Instruments for the measurement of effluents in the atmosphere
Medical instruments
     R 16  Non-invasive automated sphygmomanometers
     R 16  Non-invasive mechanical sphygmomanometers
     R 93  Focimeters
     R 104  Pure tone audiometers
     R 114  Clinical electrical thermometers for continuous measurement
     R 115  Clinical electrical thermometers with maximum device
     R 122  Equipment for speech audiometry
     R 128  Ergometers for foot crank work
     R 135  Spectrophotometers
Acoustics and vibrations
     R 58  Sound level meters
     R 88  Integrating-averaging sound level meters
     R 102  Sound calibrators
     R 130  Octave-band and one-third-octave-band filters
Ionizing radiations
     R 127  Radiochromic film dosimetry system
     R 131  Polymethylmethacrylate dosimetry system
     R 132  Alanine EPR dosimetry system
Physico-chemical measurements
     R 126  Evidential breath analysers
     R 109  Pressure gauges with elastic sensing element
     R 109  Pressure-vacuum gauges with elastic sensing element
     R 109  Vacuum gauges with elastic sensing element
Temperature, thermal energy
     R 75  Heat meters
     R 84  Platinum, copper and nickel resistance thermometers
     R 133  Liquid-in-glass thermometers
Testing of materials
     R 65  Force measuring systems of testing machines