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CMCs General Physics (4)
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Impedance up to the MHz range
Dimensional metrology (4)
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soil
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chromium
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Mexico (4)
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Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Length for Mexico (.PDF file)
Diameter standards. External cylinder (plug): diameter, L, 0.005 m to 0.3 m
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µm: (0.18 + 0.4L)
1-D stylus comparator, gauge substitution
Approved on 14 June 2004
Internal NMI service identifier: CENAM/16
 
Diameter standards. Internal cylinder (ring): diameter L, 0.005 m to 0.205 m
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µm: (0.18 + 0.4L)
1-D stylus comparator, gauge substitution
Maximal external size diameter: 300 mm
Approved on 14 June 2004
Internal NMI service identifier: CENAM/17
 
Diameter standards. External cylinder (pin or wire): diameter L, 0.1 mm to 5 mm
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µm: (0.25 + 0.001L)
1-D stylus comparator, gauge substitution
Approved on 14 June 2004
Internal NMI service identifier: CENAM/18
 
Diameter standards. Ball or sphere: diameter L, 0.005 m to 0.065 m
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µm: (0.18 + 0.4L)
1-D stylus comparator, gauge substitution
Approved on 14 June 2004
Internal NMI service identifier: CENAM/19