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	1	Almost Black	Effective threshold. First step above complete black. Slight tonality, but no texture.
	2	Very Dark	First suggestion of texture. Deep tonalities, representing the darkest part of the image in which some detail is required.
	3	Gray-Black	Average dark materials. Low values showing adequate texture.
	4	Dark Gray	Average dark foliage. Dark stone. Landscape shadow. Recommended shadow value for the portraits in sunlight.
	5	Middle Gray	Kodak Neutral Test Card (18% reflectance gray card.) Clear north sky (panchromatic rendering.) Dark skin. Gray stone. Average weathered wood.
	6	Gray	Average Caucasian skin tones in sunlight and in diffuse skylight or very soft light. Light stone. Clear north sky (orthochromatic rendering.) Shadows on snow in sunlight.
	7	Light Gray	Very light skin. Light-gray objects. Average snow with acute side lighting.
	8	Off-White	Whites with textures and delicate values (not blank whites). snow in full shade. Highlights on Caucasian skin.
	9	White	Glaring white surfaces. Snow in flat sunlight. White without texture.