Fadometer

We also tried the fadometer and found it graded in between. Taking that same example — between 70 and 21 to the ultra-violet light — it was 70 and 45 to the fadometer.

The use of a fadometer is to be recommended, but because of its limited use in the average leather laboratory the adoption of the ordinary exposure test is considered best.

A hundred hours in the fadometer equals half a year in Florida sunshine.

Essentially, these consisted of placing fabric swatches under the light of the Florida sun or of a fadometer, and then examining them to determine the degree of fade.