The Farnsworth-Munsell 100 Hue Test M80000 is a highly effective and easy to use test to assess an individual’s colour vision. It has been used by industry and governments for over 40 years to detect colour vision abnormalities and to assess colour acuity (precise levels of colour discrimination). The Farnsworth-Munsell 100 Hue Test is specified by the ASTM E 1499 Standard Guide for Selection, Evaluation and Training of Observers, the AATCC Evaluation Procedure 9 and numerous leading companies in a variety of industries. It is traceable to NIST - the National Institute of Standards and Technology. The test includes user-friendly scoring software available in multiple languages. The included software will automatically remind you when the colour caps require replacing (approximately every two years under normal use) please contact VeriVide to purchase replacement caps. You will also receive a product certification suitable for ISO and other quality system documentation requirements. Any colour vision abnormalities and the colour acuity of each subject are detected by their ability to place the coloured reference caps in order of hue within each tray.