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Title: Youden Plots Applied To Interlaboratory Comparison Mass Measurements
Author: Frank E. Jones
Source: 2004 Measurement Science Conference
Year Published: 2004
Abstract: Data from an interlaboratory comparison study involving 10 laboratories, each of which made mass measurements on 4 1-kilogram artifacts, were analyzed using techniques of Youden. Using these techniques, precision and systematic error or bias, were easily separated. The artifacts (weights) were all fabricated from stainless steel of approximate denstity 8,000 kg/m3. The NIST and other laboratory kilograms were in the form of cylinders with height approximately equal to the diameter of the base. In addition, one of the weights was in the form of a hollow sealed cylinder (with height approximately equal to the diameter of the base) with an approximate density of 3,000 kg3 used in conjunctionwith a tube-shaped weight of approximate density 8,000 kg/m3, configured as a tube with surface area approximately that of its mate. Also, in addition, one weight was configured of solid concentric rings that exaggerated the surface area of a normal weight and another weight with an exaggerated height-to-base ratio to accentuate sensitivity to temperature effects.

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