This specification covers the technical characteristics of and test methods for insulating rods and foam-filled tubes made from fiberglass-reinforced plastic (FRP) that are intended for use in live line tools. This specification does not include insulating foam-filled tubes and rods made from other materials, as well as fittings and attachments to the rods and foam-filled tubes for complete tools are not covered in this specification. The rods and tubes shall undergo four types of tests, namely: design test, sample test, routine test, and acceptance test. Tests shall be conducted to evaluate the following mechanical and electrical properties: wicking, bending deflection, horizontal crush, tension, shear, compression, modulus of elasticity, and mechanical aging; and dielectric current and leakage.