articles/Paper/barytaphenomenon-page3
by Mike McNamee Published
This is essentially the same data but plotted on the Lab space. The 'repeatability' cluster of data shows that the repeatability of the instrumentation is about the size of the marker points, and that differences on the graph are real, either due to batch differences or different fomulations. The D50 crosses show that there is a rotation of the points around the neutral axis from D65 but that the differences between D65 and D50 measurements are relatively small. Pure neutral at D65 lies at the '0, 0' origin of the graph.
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