MIL-STD-104C

Abstract

This standard establishes definite limits for electrical insulation colors as used on wire and cable insulations. The limits of a specified color define the extremes established for that color. The nominal defines the hue, lightness and saturation (chroma) considered most desirable for the specified color. <br>Colors shall be in two classes as specified. When the class is not specified, either class may be used. <br>Class 1: Colors in this class are for the most part, highly saturated, bright high-gloss colors for plastic and other insulating materials where the characteristics of the material permit the use of these colors. <br>Class 2: Colors in this class are characteristically less saturated, low-gloss colors, for fabric, rubber and other insulations for which Class 1 colors are not practicable. <b><u>Intended Use:</u></b> Class 1 colors are applicable to all insulation materials which will accept bright, highly saturated (high chroma) pigments. In general, plastic insulations intended for use where exposure to direct sun-light is infrequent can be furnished in Class 1 colors. Wherever possible, Class 1 colors are preferred to Class 2 colors and should be specified. Violet may be used where purple is specified. Class 2 colors are applicable to all insulation materials which will not accept Class 1 colors particularly where color permanence is a factor. In general, fabric and rubber materials may require use of Class 2 colors, although Class 1 colors should be specified if their use is practicable. <br>