Thermal Stability Test Apparatus is available in a sturdy construction that ensures optimum performance for longer period of time. The Test Apparatus is designed to check thermal stability of polyvinyl chloride insulation and sheath of electric cables. The Test Apparatus can measure thermal stability time in minutes that is required to change the pH value of 5 to 3 of a universal indicating pH paper. Thermal Stability Test Apparatus can be availed in varied range of specifications to suit industrial requirement.