R-Value and U-Factor/U-Value
R-Value = Thermal Resistance. U-Factor/U-Value = Thermal Conductance.
ASTM
The American Society for Testing Materials (ASTM) is a standards organization that develops and publishes technical standards. Adoption of standards is voluntary unless mandated by a regulator.
UL
The Underwriters Laboratories (UL) is a safety consulting and certification company.
ANSI
The American National Standards Institute (ANSI) is a standards organization that oversees consensus of and publishes information about dimensions, ratings, terminology and symbols, test methods, and performance and safety requirements of systems, products, and processes used throughout many industries. Adoption of standards is voluntary unless mandated by a regulator.
ISO
The International Organization for Standardization (ISO) is an international standard-setting organization with representatives from other standards organizations.
K-Factor
The property of a material’s ability to conduct heat.
BOD (Basis of Design)
A tool to present the thought processes used in the writing of a specification. Describes the technical approach to a design and identifies parameters to be used.
