The ARSST™ is a cost effective calorimeter with a variety of applications. It is the product of extensive research into runaway chemical reactions and their impact on process system dynamics. The ARSST™ is designed to simplify the acquisition of data necessary for thermal hazards analysis, runaway reaction evaluations, and the proper sizing of pressure relief vents. The measured temperature and pressure rate data can be directly applied to full-scale industrial processes.

The ARSST™ typically uses 5, 10, or 20 ml samples contained in an open, well-insulated glass test cell. This configuration minimizes heat sink effects (phi = 1.04) and is particularly well suited for gassy systems. 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. Solids as well as liquids may be tested. FAI's patented flow regime detector can distinguish between foamy and non-foamy behavior, and fire exposure heating rates up to 30°C/min. are easily simulated.

New Features & Capabilities

The new ARSST™ calorimeter control software keeps the best 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 an electronic record of test setup parameters, operator actions and final conditions.
• Seven preset modes make test setup a snap, and test parameters can be modified during a run.
• Data acquisition frequency exceeds 500 points/second for improved resolution of rapid temperature or pressure events.
• Temperature measurement is expanded from -50°C to 700°C.
• The ARSST™ is now available with closed-cell and high phi-factor testing options.
• The new ARSST™ software is compatible with PCI architecture and Windows XP.

For more information please visit www.ARSST.com or call (630) 323-8750