Final reports: Key comparisons - M

Hydrometers calibration

Low and medium force measurements

Force at 500 kN

Comparison of mass standards

Torque measurements

Supplementary comparison in Mass, Force: 0.6 MN to 2 MN

Force standards

Force standard machines

Comparison of piston and bell provers

Hardness (Rockwell C)

Hardness (Rockwell A and B)

Hardness (Rockwell A and B)

Hardness (Brinell)

Hardness (Vickers)

Pressure measurements

Pressure measurements in gas media

Pressure measurements in gas (gauge mode)

Pressure measurements in oil (gauge mode)

Pressure measurements in gas (gauge mode)

Pressure measurements in oil (gauge mode)

Pressure measurements in oil (gauge mode)

Comparison of national pressure standards

Comparison of torque standards in the range from 1 kN·m to 2 kN·m

Density of liquids

Measurement of liquid flow rate

Reference gas flow meter’s test rigs comparison

Comparison of water flow calibration

Liquid volume

Gas flow rate measurements

Gravitational acceleration

Intercomparison in the field of Rockwell and Super-Rockwell hardness scales

Comparison of national hardness standards of Superficial-Rockwell scales

Brinell Hardness

Comparison of mass standards

Comparison of mass standards

Comparison of standards of gauge pressure

Pressure measurements (absolute and gauge mode)

Gauge pressure

Torque measurements

Measurement of liquids kinematic viscosity

Comparison of viscosity measurements of standard liquids

Density of liquids

Density determination of mass standards (Bilateral comparison)

Solid density

Comparison of deadweight machines

Comparison of force measurements in compression

Force

Gas flow

Low air-speed

Low Pressure air flow

DN100 comparison

Calibration and calibration method of a 1000 L proving tank

Liquid flow rate

Comparison of water flow calibration

Comparison of methods and results for the calibration of a 1000 L proving tank

Comparison of calibration of 50 ml pycnometer and 500 ml volumetric flasks using the gravimetric method

Air speed

Free-fall acceleration

Hardness Rockwell (HRA, HRB and HRC)

Hardness (Brinell)

Comparison of sub-multiples of the kilogram

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Sub-milligram mass comparison

Calibration of a SRG between 0.005 Pa and 1 Pa, and of a CDG between 0.5 Pa and 100 Pa

Hydraulic gauge pressure measurements

Negative gauge pressure

Digital pressure gauge comparison in the range of 10 MPa to 100 MPa of liquid pressure

Comparison of hydraulic gauge pressure standards from 50 MPa to 1000 MPa

Comparison of the determination of hydraulic pressure balance effective area

Pressure measurements in gas (absolute mode)

Pressure measurements in Nitrogen (absolute mode)

Negative gauge pressure

Negative gauge pressure

Negative gauge pressure

Torque measurements

Torque measurements

Calibration of torque wrenches

Comparison of force standard machines

Comparison of piston and bell provers

Low pressure gas flow (pressure < 4 105 Pa)

Air speed

LDA-based intercomparison of anemometers

Measurement of the conventional mass of a weight

Pressure measurements in gas (gauge mode)

Pressure measurements in the range 30 Pa to 7000 Pa

Comparison of absolute pressure standards in the barometric range from 80 kPa to 110 kPa

Pressure measurements in gas (gauge mode)

Force calibration

Force employing deadweight machines

Comparison of mass standards

Mass standards

Pressure calibration in nitrogen

Comparison of the calibration of hydrometers for liquid density determination (bilateral CENAM - INRIM)

Comparison of the calibration of hydrometers for liquid density determination (bilateral INMETRO - INRIM)

Comparison of volume of solids by hydrostatic weighing (bilateral INMETRO - CENAM)

Comparison of calibrations of hydrometers for liquid density determination

Determination of volume of weights

High-accuracy hydrometers

Liquid density using a hydrostatic weighing method

Calibration of force testing machines in compression

Comparison of instrumented Charpy tests

Calibration of a force transducer in compression

Comparison of a force testing machine

Comparison of liquid volume standards

Volume of liquids

Calibration of 20 L volumetric pipette

Calibration of graduated neck test measures at 20 L

Volume of liquids

Volume of liquids

Flow rate: Water

Comparison of mass standards

Comparison of mass standards

Determination of mass of weights

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards of accuracy F1

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Comparison of mass standards

Determination of the susceptibility and magnetic polarization of weights by means of the susceptometer method

Pressure measurements (gauge mode)

Pressure measurements (low gauge pressure)

Pressure measurements (hydraulic gauge pressure)

Pressure measurements (hydraulic gauge pressure)

Bilateral comparison in torque transducer calibration between CENAM, Mexico and CEM, Spain

Torque wrench calibration

Comparison of viscosity standards