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ITS-90 Fixed Points
Practical Limitations of ITS-90 From Mercury Triple Point to the Silver Freeze Point
The paper investigates the properties of thirty four lots of 6N pure metal used to make cells conforming to ITS-90 from mercury through silver over a period of twenty years.
ITS-90 Fixed Points
Metal Clad Fixed Point Cells for the ITS-90
This paper presents the results from over 160 fixed point cells in quartz or metal clad which show that after proper preparation metal clad cells have similar performance to quartz clad cells.
ITS-90 Fixed Points
Slim Cells: An International Comparison
Analysis and Comparisons of Isotech's Slim ITS-90 Fixed Points.
ITS-90 Fixed Points
The Gallium Point, An Alternative Reference Temperature to the Water Triple Point
Considering the ITS-90 Gallium Point.
ITS-90 Fixed Points
An Optimal Gallium Cell – Interoperability Between a Cell Made In England and Intercompared at NIST, to it’s Reference Cell
An Open Gallium Cell of a design dating from 1973 and purity 99.999999% and made in England has been inter-compared with NIST’s reference Gallium Cell.
ITS-90 Fixed Points
A Technical Guide and Standard Practice for Realizing the Melting Point of Gallium
Different methods to realize the melting point of gallium for the calibration of thermometers.
ITS-90 Fixed Points
Assembling a Silver ITS-90 Fixed Point Cell Ready For The Furnace
Pictorial guide showing the assembly and testing of a cell as it is placed into a furnace.
ITS-90 Fixed Points
Stem Conduction And Light Piping in ITS-90 Fixed Point Cell Assemblies at a UKAS Laboratory
Experiences in Calibrating SPRTs at NTPL
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