Leneta Test Charts

Opacity-Display Charts / Spreading Rate Charts

Charts of this type combine the large, unbroken areas that are characteristic of Opacity Charts, with the striped design of a Display Chart. The larger areas permit wide aperture photometric measurements and visual colour comparisons, while the striped area is uniquely effective for hiding power comparison and display. Spreading Rate Charts (Forms 12H and 13H) are accurately 0.1 square meters (approximately one square foot) in area, and are designed for brushout application at specified spreading rates.

Request Info			Spreading Rate Charts Design Area = 1.076 ft2 (1000 cm2)
Form 9A 5-1/2 x 10 in 140 x 254 mm	Form 9B 7-5/8 x 11-3/8 in 194 x 289 mm	Form 21B 7-5/8 x 11-3/8 in 194 x 289 mm	Form 12H 11-1/4 x 17-1/4 in 286 x 438 mm	Form 13H 11-1/4 x 17-1/4 in 286 x 438 mm