 Under the Metre Convention, the BIPM carries out calibrations in selected areas for NMIs of the Member States.
| Chemistry | Electricity | Ionizing Radiation | Mass |
The range and type of calibrations offered may change from time to time. For more information about reference standards kept at the BIPM, please refer to the appropriate scientific departments.
For the BIPM policy on stating uncertainties, click here.
Traceability to the SI through the BIPM:
For laboratories claiming traceability through the BIPM, information on BIPM calibration and measurement services is provided below:
 What is traceability?
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Traceability to the SI through the BIPM
