ASTM Committee C16 on Thermal Insulation was formed in 1938. C16 meets twice a year, in April and October, with about 120 members attending over three days of technical meetings capped by a discussion on relevant topics in the Thermal Insulation industry. The Committee, with a membership of approximately 350, currently has jurisdiction of over 145 standards, published in the Annual Book of ASTM Standards, Volume 04.06. C16 has 8 technical subcommittees that maintain jurisdiction over these standards. Information on this subcommittee structure and C16's portfolio of approved standards and Work Items under construction are available from the List of Subcommittees, Standards and Work Items below. These standards have and continue to play a preeminent role in all aspects important to the industry of thermal insulation, including products, systems, and associated coatings and coverings, excluding refractories.