Standard Test Method for Determination of the Linear Coefficient of Thermal Expansion of Plastic Lumber and Plastic Lumber Shapes Between –30 and 140°F (–34.4 and 60°C)— 5 стр.
Standard Test Method for Coefficient of Linear Thermal Expansion of Plastics Between "12;30°C and 30°C with a Vitreous Silica Dilatometer— 5 стр.