– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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Calibration and characterization certificates: China
2016
No. 74 1 kg mass prototype, No. 110 China

2015
No. 124 1 kg mass prototype, No. 64 China
No. 22 1 kg mass prototype, No. 60 China

2010
No. 15 Ionization chamber PTW 30012, No. 163 in a 60Co gamma-ray beam NIM, China
No. 14 Ionization chamber PTW 30010, No. 2369 in a 60Co gamma-ray beam NIM, China
No. 13 Ionization chamber NE 2571, No. 708 in a60Co gamma-ray beam NIM, China
No. 12 Ionization chamber Radcal RC6M, No. 9066 in mammography x-rays NIM, China
No. 11 Ionization chamber Radcal RC6M, No. 9066 in low-energy x-rays NIM, China

2009
No. 58 1 kg mass prototype, No. 64 China
No. 57 1 kg mass prototype, No. 60 China

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

Traceability to the SI through the BIPM
Subject area:
What is traceability?
BIPM policy on stating uncertainties
Provision of BIPM technical services per Member State
Chemistry
Electricity
Ionizing Radiation
Mass
Time
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BIPM calibration and measurement services
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