The ARSST typically uses 5, 10 or 20 ml magnetically stirred samples contained in an open, well-insulated glass test cell. This configuration minimizes heat sink effects (phi = 1.05) and avoids the transient problems characteristic of a heavy wall sample holder. With a low phi factor essentially all the reaction heat goes to further heat the sample, so it is possible to detect other exotherms that result at elevated temperatures. The ARSST is particularly well suited for gassy systems, in part because it avoids gas solubility issues associated with closed cell testing.

The ARSST's unique design allows you to acquire reliable adiabatic pressure and temperature rate data that are difficult to obtain with other commercially available instruments. FAI's patented flow regime detector can distinguish between foamy and non-foamy behavior, and fire exposure heating rates up to 30ºC/min are easily simulated.

The product sample size (5-10 g) is large enough to be representative, yet small enough to reduce waste and minimize exposure risk. Tests are safely contained in a 350 ml stainless steel high pressure vessel.

- The new ARSST calorimeter control software keeps the best features of the original ARSST, but adds a number of significant improvements. 

- A test summary file is automatically generated and can be updated throughout the test, providing electronic records of test set-up parameters, operator actions, and final conditions.

- Seven preset modes make test set-up a snap, and test parameters can be modified during a run. 

- Fast data acquisition frequency provides improved resolution of rapid temperature or pressure events. 

- Temperature measurement is expanded from –50ºC to 700ºC. 

- Also available with closed-cell and high phi-factor testing options. 

- Software is compatible with PCI architecture and Windows XP.