MRC:
The environmental elements or conditions that an item is designed or protected to resist or withstand satisfactorily.ADZC
Environmental Protection:
Cold resistant and heat and humidity resistant and mildew resistant and solvent resistant and water resistant and weather resistant and shrink resistant
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
L-s-300, type 1, class 4, reflectivi type 2, durabili type 2, 200 federal specification single material response