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Calibration and characterization certificates: China
 
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BIPM services in the field of time, frequency and gravimetry
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For other services offered by the BIPM, please refer to the summary charts for electricity, ionizing radiation, mass and time, frequency and gravimetry.

2005
No. 11 Helium-neon laser at 633 nm, NIM D1 NIM, China

2004
No. 22 Volume magnetic susceptibility, NIM-Ti NIM, China
No. 21 Volume magnetic susceptibility, NIM-A1ac NIM, China