Thermal analysis is an important area in the South African scientific and industrial landscape and services a diverse range of industries including mining, petrochemical, pharmaceutical, materials testing and much more. ThermSA is a division of SACI devoted to the development of thermal analysis skills in South Africa.

We are lucky to enjoy growing and continued support from all over South Africa but find it increasingly difficult to keep track of interested parties in order to better cater for their needs.

As a member of SACI, you are entitled to nominal membership of two divisions, which allows the division to regularly interact with members. In order to help us improve the service we deliver, please ensure to confirm with SACI that you have selected ThermSA as one of your divisions of choice. The easiest way to do this is to update your membership details using the following link:

Please take special note of our first members meeting, which will now be held regularly throughout the year.

Kind regards

The ThermSA Committee.

Instrumentation supplier contact details:


Instrument Type

Sales Representative

Service Engineer



Dashika Naidoo


Advance Lab

TA Instruments

Dave Perret

Ross Burnham


Mettler Toledo

Rudy Maliepaard


Shimadzu South Africa


Michele  Paulus

Conference   Thothela
083 486 1719

A&J Scientific


Adri Watkins




Selwyn Pietersen

Ruan Ferreira

Perkin Elmer South Africa

Perkin Elmer

Chris de Jager

Stephen Varty



Peter O’Hare



Introduction to Thermal Analysis

Thermal analysis is a branch of materials science where the properties of materials are studied as they change with temperature.

Several methods are commonly used - these are distinguished from one another by the property which is measured:

Differential thermal analysis (DTA): temperature difference

Differential scanning calorimetry (DSC): heat difference

Thermogravimetric analysis (TGA): mass

Thermomechanical analysis (TMA): dimension

Dilatometry (DIL): volume

Dynamic mechanical analysis (DMA) : mechanical stiffness & damping

Dielectric thermal analysis (DEA): dielectric permittivity & loss factor

Evolved gas analysis (EGA) : gaseous decomposition products

Thermo-optical analysis(TOA) : optical properties


Simultaneous Thermal Analysis (STA) generally refers to the simultaneous application of Thermogravimetry (TGA) and Differential scanning calorimetry (DSC) to one and the same sample in a single instrument. The test conditions are perfectly identical for the TGA and DSC signals (same atmosphere, gas flow rate, vapor pressure of the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect, etc.). The information gathered can even be enhanced by coupling the STA instrument to an Evolved Gas Analyzer (EGA) like Fourier transform infrared spectroscopy (FTIR) or Mass Spectometry (MS).

Common areas of application include:




•Polymers & rubbers

•Glasses & ceramics

•Electrical components

•Building materials


•Fossil fuels