Black Coating

Section 211.735  Black Coating "Black coating" means, for purposes of 35 Ill. Adm. Code 218 and 219, a coating that meets both of the following criteria, based on Cielab color space, 0/45 geometry: Maximum lightness of 23 units.  For spherical geometry, specular included, maximum lightness of 33 units; and Saturation of less than 2.8, where saturation equals the square root of A 2 + B 2 .