Blue Scales (Textile Fading Cards)
Blue Scales Textile Fading Cards
Starting at $28.75
In stock
SKU
1201
Test for effects of light on paintings, documents and textiles with Blue Scales Fading Cards. Each card features pieces of wool cloth dyed with blue dyes of different degrees of fastness which are used as light fastness standards. They allow you to monitor the net exposure to light given to objects on display and to alert conservators to adjust intensity of illumination. Price each.