Home    Key and supplementary comparisons    Calibration and Measurement Capabilities - CMCs
The BIPM key comparison database
Refine your search
CMC AREA
CMCs General Physics (112)
CMCs Ionizing Radiation (42)
CMCs Chemistry (21)
PHYSICS >
Temperature (47)
Fluid flow (11)
Dimensional metrology (11)
DC voltage, current, and resistance (7)
Pressure (7)
Torque, Viscosity, Hardness and Gravity (7)
Mass, mass standards (6)
Laser frequencies (4)
AC voltage, current, and power (3)
Vibration (2)
Photometry (2)
Force (2)
IONIZING RADIATION
Ambient dose equivalent rate (10)
Directional dose equivalent rate (10)
Air kerma rate (9)
Personal dose equivalent rate penetrating (at 10 mm depth) (5)
Personal dose equivalent rate superficial (at 0.07 mm depth) (5)
Absorbed dose rate to water (3)
CHEMICAL MATERIAL
nitrogen (14)
synthetic natural gas (7)
CHEMICAL ANALYTE >
carbon monoxide (4)
propane (4)
carbon dioxide (3)
nitrogen monoxide (2)
nitrogen (1)
GEOGRAPHIC LOCATION
EURAMET (175)
Portugal (175)
Result of the search
Your query 'Portugal' produced 175 results New search
1  2  3 [Next >>]

 
Portugal, IPQ (Instituto Portugues da Qualidade)
Complete CMCs in Acoustics, Ultrasound, Vibration for Portugal (.PDF file)
Charge sensitivity (modulus). Accelerometer. Measurand unit, C/(m/s2)
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 1.0
Laser interferometry, ISO 16063-11
Frequency: 40 Hz to 800 Hz
Approved on 27 December 2007
Internal NMI service identifier: IPQ/201
 
Voltage sensitivity (modulus). Acceleration measuring chain. Measurand unit, V/(m/s2)
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 1.0
Laser interferometry, ISO 16063-11
Frequency: 40 Hz to 800 Hz
Approved on 27 December 2007
Internal NMI service identifier: IPQ/202
 
DC voltage sources: single values. Standard cell, solid state voltage standard, 1 V to 10 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 0.1 to 1.5
Comparison
Fixed value: 1 V, 1.018 V, 10 V
Approved on 06 August 2013
Internal NMI service identifier: IPQ/1c
Uncertainty table
 
DC voltage sources: low values. Calibrator, 0.001 V to 10 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 3 to 50
Comparison to a reference with a resistive divider
Approved on 06 August 2013
Internal NMI service identifier: IPQ/2a
Uncertainty table
 
DC voltage sources: intermediate values. Calibrator, 10 V to 1000 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 3 to 5
Comparison to a reference with a resistive divider
Approved on 06 August 2013
Internal NMI service identifier: IPQ/2e
Uncertainty table
 
DC voltage meters: intermediate values. Nano-voltmeter, multimeter, 0.001 V to 1000 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 3 to 50
Comparison
Approved on 06 August 2013
Internal NMI service identifier: IPQ/3a
Uncertainty table
 
DC voltage ratios: up to 1100 V. Resistive divider, ratio meter, 0.1 to 1
Relative expanded uncertainty (k = 2, level of confidence 95 %): 3E-06
Comparison
Voltage: < 1000 V
Approved on 06 August 2013
Internal NMI service identifier: IPQ/4
 
DC resistance standards and sources: low values. Standard resistor, 1.00E-05 to 1.00E+08
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µ/: 1.2 to 100
Comparison using DCC bridge
Oil bath or air temperature: 23 °C
Approved on 06 August 2013
Internal NMI service identifier: IPQ/402.10
Uncertainty table
 
DC resistance standards and sources: high values. Standard resistor, 0.1 G to 1E+05 G
Relative expanded uncertainty (k = 2, level of confidence 95 %) in m/: 1 to 10
Direct measurement using a teraohmmeter
Air temperature: 23 °C
Approved on 06 August 2013
Internal NMI service identifier: IPQ/402.10
 
Capacitance for low loss capacitors. Standard capacitor (sealed, dry-nitrogen or fused silica dielectric), 1 pF to 1000 pF
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µF/F: 10
Comparison
Frequency: 100 Hz, 400 Hz, 1000 Hz
Approved on 06 August 2013
Internal NMI service identifier: IPQ/404.21
 
Capacitance for dielectric capacitors. Fixed capacitor, switched capacitor, capacitance box, 1 pF to 1000000 pF
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µF/F: 100
Comparison
Frequency: 100 Hz, 400 Hz, 1000 Hz
Approved on 06 August 2013
Internal NMI service identifier: IPQ/404.22
 
AC voltage: AC/DC transfer difference at medium voltage. Thermal converter, AC-DC transfer standard, 1 V to 5 V
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µV/V: 3 to 67
AC/DC transfer comparison
Frequency: 10 Hz to 1 MHz
Approved on 06 August 2013
Internal NMI service identifier: IPQ/405.10
Uncertainty table
 
AC voltage: AC/DC transfer difference at higher voltage. Thermal converter with range extender, AC-DC transfer standard, 5 V to 1000 V
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µV/V: 6 to 103
AC/DC transfer comparison
Frequency: 10 Hz to 1 MHz
Approved on 06 August 2013
Internal NMI service identifier: IPQ/405.10
Uncertainty table
 
AC current: AC/DC transfer difference. Thermal current converter plus shunt, AC-DC transfer standard plus shunt, 0.005 A to 20 A
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µA/A: 20 to 130
AC/DC transfer comparison
Frequency: 10 Hz to 100 kHz
Approved on 06 August 2013
Internal NMI service identifier: IPQ/406.10
Uncertainty table
 
Laser radiations. Frequency stabilized laser: vacuum wavelength, 633 nm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in fm: 0.04
Optical beat frequency
Internal NMI service identifier: IPQ/101.13
 
Laser radiations. Frequency stabilized laser: absolute frequency, 474 THz
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in kHz: 24
Optical beat frequency
Internal NMI service identifier: IPQ/101.13
 
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[52, 0.56L], L in mm
Interferometry
Internal NMI service identifier: IPQ/101.15
 
Angle by circle dividers. Optical polygon: face angle, 15 ° to 90 °
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in ": 1
Cross calibration versus index table and autocollimator
Number of polygon faces: 4 … 24
Internal NMI service identifier: IPQ/110.04
 
Angle by circle dividers. Index table: index angle, 0 ° to 360 °
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in ": 1
Cross calibration versus index table and autocollimator
Step size: 30 °, 40 °, 60 °
Internal NMI service identifier: IPQ/110.02
 
Angle artifacts. Angle block: included angle, 0 ° to 90 °
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in ": 1
Index table and autocollimator
Internal NMI service identifier: IPQ/110.01