If a polypropylene line has ultraviolet inhibitors added, it should meet which military specifications?

The addition of ultraviolet inhibitors to a polypropylene line is significant because it enhances the line's resistance to degradation caused by sunlight exposure. This is particularly important for marine applications where lines are often subjected to harsh environmental conditions. Military Specification MIL-R-24049 specifically addresses the requirements for ropes and lines made of synthetic fibers, including polypropylene. This specification outlines the necessary properties, including the addition of ultraviolet inhibitors for improved durability and performance in outdoor applications. Therefore, the correct specification related to the incorporation of UV inhibitors into polypropylene line is MIL-R-24049, as it explicitly covers synthetic rope materials and their performance characteristics in marine environments.