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Your query 'United Kingdom' produced 10 results New search

 
United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Length for United Kingdom (.PDF file)
End standards. Long gauge block: thermal expansivity a, 0.000009 K-1 to 0.000013 K-1
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in K-1: (0.004 + 11/L + 0.000007L) x 10-6, L in mm
Absolute interferometry exact fractions
Length, L: 100 mm to 1000 mm
Temperature: 18 °C to 25 °C
Internal NMI service identifier: 17
 
End standards. Length bar: thermal expansivity a, 0.000009 K-1 to 0.000013 K-1
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in K-1: (0.004 + 11/L + 0.000007L) x 10-6, L in mm
Absolute interferometry exact fractions
Length, L: 100 mm to 1270 mm
Temperature: 18 °C to 25 °C
Internal NMI service identifier: 18
 
End standards. Gauge block: central length L, 0.5 mm to 100 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[19, 0.21L], L in mm
Absolute interferometry exact fractions
Approved on 03 August 2011
Internal NMI service identifier: 10
 
End standards. Gauge block: central length L, 0.5 mm to 100 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[32, 0.76L], L in mm
Mechanical comparison
Approved on 03 August 2011
Internal NMI service identifier: 10a
 
End standards. Step gauge: face spacing L, 10 mm to 1540 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: (0.1 + 0.000232L), L in mm
Modified CMM with heterodyne interferometer
Approved on 08 October 2012
Internal NMI service identifier: 19
 
End standards. Length bar: central length L, 0.5 mm to 100 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[60, 0.21L], L in mm
Absolute interferometry exact fractions
Approved on 22 September 2015
Internal NMI service identifier: 14
 
End standards. Long gauge block: central length L, 100 mm to 1000 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: (120 + 0.26L), L in mm
Interferometric mechanical comparator
Internal NMI service identifier: 12
 
End standards. Long gauge block: central length L, 100 mm to 1000 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[49, 0.083L], L in mm
Absolute interferometry exact fractions
Internal NMI service identifier: 13
 
End standards. Length bar: central length L, 100 mm to 1270 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: (120 + 0.26L), L in mm
Interferometric mechanical comparator
Internal NMI service identifier: 15
 
End standards. Length bar: central length L, 100 mm to 1270 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[49, 0.083L], L in mm
Absolute interferometry exact fractions
Internal NMI service identifier: 16