Size Estimation Transparency Chart - Ryan Quality Control
Amazon.com: Precision Accuracy SEC Size Estimation Chart (Transparency) for Defects and Measuring : Industrial & Scientific
References Babicz, G. (2000) ISO Cnages its Quality Approach. Qulaity, 39(6), p. 56-58. Campbell, P. (1995) An Introduction to Measuration and Calibration. - ppt download