ASTM's thermal insulation standards are instrumental in specifying and evaluating the materials and methods used to reduce the rate of heat transfer. The flow of heat can be delayed by understanding the conductive, convective, and/or radiative behavior of the material in consideration. Such materials include cements, fiber boards, glass blocks, coatings, and blankets, to name a few. These thermal insulation standards help laboratories, device and equipment manufacturers, construction companies, and industrial firms, and other groups of people that deal with thermal insulating materials and procedures in examining these respective materials for efficiency.

Carbon fiber graphite insulation cylinder or board, carbon and graphite felt are all can be as thermal insulation material.