This part of ISO 11359 specifies a method for the determination of the penetration temperature of thermoplastics using thermomechanical analysis. NOTE This method can also be used to measure the softening temperature.
BS ISO 11359-3:2002 history
2019BS ISO 11359-3:2019 Plastics. Thermomechanical analysis (TMA). Determination of penetration temperature
2002BS ISO 11359-3:2002 Plastics - Thermomechanical analysis (TMA) - Determination of penetration temperature