The Calibration of Colour Instruments Using a Certified Tile and a Standard Wool Top
Abstract
An international round trial involving five laboratories was conducted to evaluate the potential of reporting wool colour measurements in a traceable CIE colour space. Two calibrations were compared:
- a ‘certified tile’ calibration and
- a ‘standard wool’ calibration.
It was found that for the tile calibration one of the laboratories gave results that differed from the other participants. When this laboratory was removed from the analysis the components of variance and 95% confidence limits were similar to those obtained using wool as a calibration standard. Further investigations revealed the cause of the difference for the one laboratory was due to the particular instrument design - the most likely cause being the geometry(ie 00/450).
Citation
"The Calibration of Colour Instruments Using a Certified Tile and a Standard Wool Top", A.R. Lindsay, T.J. Mahar & J.W. Marler, Report 8, Technology & Standards Committee, IWTO, Nice Meeting, December 1997