Each meter is equipped wIth two test standards with light transmittance values printed on their labels, These values are accurate to within plus or minus one percentage point of a N.LS.T. calibrated spectrophotometer.

To verify The Tint Meter is working properly and within specifications, take a reading of the reference samples before you begin to use the Tint Meter. The meter should display a readng of not more than plus or mInus 3% poInts of the value printed on the label.