Mass: BIPM ensemble of mass standards | International Avogadro Coordination project | watt balance |
Time: Time | Frequency | Gravimetry |
Electricity: including the watt balance and calculable capacitor projects
Ionizing radiation: Dosimetry | Radionuclides |
Chemistry: Gas metrology | Organic analysis |

Other sections at the BIPM  (BIPM organigram)
Staff directory
Calibrations
Scientific publications in the open literature:
   >  Mass | Time (and FTP server) | Electricity (and watt balance) | Ionizing radiation | Chemistry | Miscellaneous |