Results for: Latvia
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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Latvia, LATMB (LNMC Metrology Bureau (LATMB))
DC voltage (up to 1100 V) ,
DC voltage sources: single values
:
1.018 V
Standard cell, solid state voltage standard
Absolute expanded uncertainty
:
5.1 µV
Direct comparison
Approved on 14 March 2006
Institute service identifier : LATMB/2
DC voltage (up to 1100 V) ,
DC voltage sources: single values
:
10 V
Solid state voltage standard
Absolute expanded uncertainty
:
4.9 µV
Direct comparison
Approved on 14 March 2006
Institute service identifier : LATMB/1
Linear dimensions ,
Line standards
:
0 mm to 200 mm
Precision scales
Absolute expanded uncertainty
:
1.6 µm
Comparator
Material : glass
Approved on 22 March 2005
Institute service identifier : LATMB/3
Mass ,
Mass
:
0.1 kg to 1 kg
Mass standard
Absolute expanded uncertainty
:
2.6E-2 mg to 0.22 mg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standard is known
Approved on 11 October 2005
Mass ,
Mass
:
10 g to 100 g
Mass standard
Absolute expanded uncertainty
:
7 µg to 2.6E1 µg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standard is known
Approved on 11 October 2005
Mass ,
Mass
:
0.1 g to 1 g
Mass standard
Absolute expanded uncertainty
:
1.4 µg to 5 µg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standard is known
Approved on 11 October 2005
Linear dimensions ,
End standards
:
100 mm to 1000 mm
Long gauge block: central length, variation in length L
Absolute expanded uncertainty
:
0.5 µm to 1.4 µm
Q[0.5 µm, 1.3E-06 L]
Mechanical comparison
Material : steel
Approved on 22 March 2005
Institute service identifier : LATMB/2
Linear dimensions ,
End standards
:
0.1 mm to 100 mm
Gauge block: central length, variation in length L
Absolute expanded uncertainty
:
8.0E1 nm to 1.6E2 nm
Q[80 nm, 1.3E-06 L]
Mechanical comparison
Material : steel
Approved on 22 March 2005
Institute service identifier : LATMB/1
Form ,
Flatness standards
:
0 mm to 200 mm
Optical flat
Absolute expanded uncertainty
:
0.1 µm
Flatness interferometer
Material : glass
Approved on 22 March 2005
Institute service identifier : LATMB/6
Mass ,
Mass
:
1 kg to 10 kg
Mass standard
Absolute expanded uncertainty
:
0.22 mg to 3.4 mg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standard is known
Approved on 11 October 2005
Angle ,
Angle artifacts
:
0 arcsecond to 360 arcsecond
Precision angle gauges: included angle
Absolute expanded uncertainty
:
3 arcsecond
Goniometer
Approved on 22 March 2005
Institute service identifier : LATMB/5
Mass ,
Mass
:
1 g to 10 g
Mass standard
Absolute expanded uncertainty
:
5 µg to 7 µg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standard is known
Approved on 11 October 2005
Mass ,
Mass
:
10 kg to 20 kg
Mass standard
Absolute expanded uncertainty
:
3.4 mg to 2.0E1 mg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standard is known
Approved on 11 October 2005
Mass ,
Mass
:
1 mg to 100 mg
Mass standard
Absolute expanded uncertainty
:
1 µg to 1.4 µg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standard is known
Approved on 11 October 2005
Linear dimensions ,
Line standards
:
0 m to 20 m
Measurement tape: line spacing L
Absolute expanded uncertainty
:
0.15 mm to 0.25 mm
Q[0.15 mm, 10E-06 L]
Tape bench and comparison to reference tape
Approved on 22 March 2005
Institute service identifier : LATMB/4
