Thermomechanical analyzers are employed in their various modes of operation (penetration, expansion, flexure, etc.) to characterize a wide range of materials. In most cases, the value to be assigned in thermomechanical measurements is the temperature of the transition (or event) under study. Therefore, the temperature axis (abscissa) of all TMA thermal curves must be accurately calibrated either by direct reading of a thermocouple or by adjusting the programmer temperature to match the actual temperature over the temperature range of interest.

1.1 This test method describes the temperature calibration of thermomechanical analyzers from -50 to 1100°C. (See Note 2.)

1.2 Computer or electronic based instruments, techniques, or data treatment equivalent to this test method may be used. Note 2Users of this test method are advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user of this test method to determine the necessary equivalency prior to use.

1.3 SI units are the standard.

1.4 This standard is similar to ISO 11359-1 but addresses a larger temperature range and utilizes additional calibration materials.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7 and Note 10.