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The BIPM key comparison database
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METROLOGY AREA
Electricity and Magnetism
Mass (17)
Length (9)
Thermometry (5)
Amount of Substance (4)
Photometry and Radiometry (2)
TYPE
Key comparisons (30)
Supplementary comparisons (7)
STATUS
Approved for equivalence (21)
Approved (5)
Planned (4)
Report in progress, draft B (2)
Measurements in progress (2)
Report in progress, draft A (2)
Continuous, approved for equivalence (1)
ORGANISATIONS
APMP (35)
CCL (1)
AFRIMETS (SADCMET expansion) (1)
Result of the search
Your query 'Viet Nam' produced 37 results New search
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  APMP.M.P- K7 Pressure measurements in oil (gauge mode)
2002 - 2004
Comparison type, Field   Key comparison in Mass, Pressure
Pressure: 10 MPa to 100 MPa
Status   Approved for equivalence, Results available
  APMP.M.FF- K2 Hydrocarbon liquid flow (bilateral comparison)
2009
Comparison type, Field   Key comparison in Mass, Fluid Flow
Flow: 5 l/s to 30 l/s
Status   Approved for equivalence
  APMP.M.FF- K6 Low pressure gas flow
2007 - 2008
Comparison type, Field   Key comparison in Mass, Fluid Flow
Parameter(s)   Pressure < 4 105 Pa
Status   Approved for equivalence, Results available
  APMP.M.M- K1 Comparison of mass standards
1999 - 2001
Comparison type, Field   Key comparison in Mass, Mass Standards
Mass: 1 kg
Status   Approved for equivalence, Results available
  APMP.L- K1 Gauge blocks by interferometry
2001 - 2002
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Status   Approved for equivalence, Results available
  APMP.M.FF- K1 Water flow
2009 - 2010
Comparison type, Field   Key comparison in Mass, Fluid Flow
Parameter(s)   Test pipe diameter: 100 mm
Status   Approved for equivalence, Results available
  APMP.M.FF- K4 Liquid volume
2006 - 2008
Comparison type, Field   Key comparison in Mass, Fluid Flow
Water volume: 100 mL and 20 L
Status   Approved for equivalence, Results available
  APMP.M.H- K1.c Hardness (Vickers 30)
2003 - 2005
Comparison type, Field   Key comparison in Mass, Hardness
Hardness: 200 HV, 600 HV and 900 HV
Status   Report in progress, draft A
  APMP.L- K1.1 Gauge blocks by interferometry
2005 - 2006
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Status   Approved for equivalence, Results available
  APMP.M.M- K6 Comparison of mass standards
2005 - 2006
Comparison type, Field   Key comparison in Mass, Mass Standards
Mass: 100 mg, 2 g, 20 g, 500 g and 1 kg
Status   Approved for equivalence, Results available
  APMP.M.H- S1 Hardness (Rockwell C)
2004 - 2005
Comparison type, Field   Supplementary comparison in Mass, Hardness
Hardness: 20 HRC to 60 HRC
Status   Approved
  APMP.L- K4 Diameter standards
2008 - 2010
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Internal and external diameters
Status   Approved for equivalence, Results available
  APMP.L- K11.1 Comparison of primary wavelength standards
2007
Comparison type, Field   Key comparison in Length, Laser Frequencies
633 nm
Status   Approved for equivalence, Results available
  APMP.T- K3.1 Realizations of the ITS-90 from 234.3 K to 692.7 K
2008
Comparison type, Field   Key comparison in Thermometry, Standard Platinum Resistance Thermometers
Status   Approved for equivalence, Results available
  APMP.QM- K9 pH measurement of phosphate buffer solutions
2009 - 2010
Comparison type, Field   Key comparison in Amount of Substance, Electrochemistry
pH ~ 6.86
Parameter(s)   Temperature: 15 °C, 25 °C and 37 °C
Status   Approved for equivalence, Results available
  APMP.L- S3 Gauge block by mechanical comparison
2006 - 2009
Comparison type, Field   Supplementary comparison in Length, Dimensional Metrology
Status   Approved
  APMP.M.M- K5 Comparison of mass standards
Comparison type, Field   Key comparison in Mass, Mass Standards
Mass: 200 mg, 1 g, 50 g, 200 g and 2 kg
Status   Approved
  APMP.M.H- K1.b Hardness (Vickers 1)
2003 - 2005
Comparison type, Field   Key comparison in Mass, Hardness
Hardness: 200 HV, 600 HV and 900 HV
Status   Report in progress, draft A
  APMP.T- S3 Comparison of industrial thermometers
2004
Comparison type, Field   Supplementary comparison in Thermometry, Industrial thermometry
Temperature: -40 °C to 250 °C
Status   Approved
  CCL- K11 Comparison of optical frequency and wavelength standards
2008 -
Comparison type, Field   Key comparison in Length, Laser Frequencies
Status   Continuous, approved for equivalence, Results available