Element's polymer testing laboratories provide TMA or Thermomechanical Analysis, an analytical technique that measures change dimension with temperature. The instrument heats or cools a sample and a very sensitive probe measures change in dimension.

From the resulting thermogram, coefficients of linear thermal expansion COLTE or CTE can be determined. Because CTE changes at the glass transition temperature, this is a good tool to measure Tg. 

Thermomechanical analysis (TMA)

Services and Standards

Coefficient of Linear Thermal Expansion (COLTE) ASTM E1545, ASTM E831

Softening Point

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