An example of a statistical graphic with calculated tolerance block, confidential value 95% in the block, 10% check-limit.

Comparision of a sample to its reference with the usual LabCH-values. As a standard illuminant D65. On the screen we see clearly the metamerism between the other illuminants (F11/A). Here we use a distance tolerance block, CMC2:1 with a dE of 1.00.