Results for: LNMC Metrology Bureau
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Geographical location
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))
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
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 , 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 : 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
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
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

Select Metrology Area

General physics
Acoustics, Ultrasound, Vibration

This metrology area covers the fields of acoustics, ultrasound and vibration.

Electricity and Magnetism

This metrology area covers the fields of DC and AC measurements, impedance, electric and magnetic fields, radiofrequencies and measurements on materials.

Length

This metrology area covers the fields of laser frequencies and dimensional metrology.

Mass and related quantities

This metrology area covers the fields of mass standards, force, pressure, density, hardness, torque, gravity and viscosity.

Chemistry and Biology
Chemistry and Biology

This metrology area covers all fields relevant to chemistry and biology.

Ionizing radiation
Ionizing Radiation

This metrology area covers the fields of dosimetry, radioactivity and neutron measurements.