The markers, or signs, are used in areas containing radiological, biological, and chemical contamination. The colorings and markings of the signs are according

Figure 9-10.- CBR contamination markers.

to STANAG 2002 and are shown in figure 9-10. The base of the triangle should be about 11 inches (28 cm) and the opposite sides about 8 inches (20 cm). The signs are in the shape of a right isosceles triangle (90 degrees by 45 degrees by 45 degrees) and are made of plastic, wood metal, or other rigid material, with holes or "ears" that are used for hanging them about the ground. They are placed on wire boundary fences, poles, trees, or rocks.