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Thermal Stability Test

Thermal Stability Testing

Understanding how materials can decompose or react with one another is imperative because the consequences of mishandled exothermic chemical reactions can be devastating. Let us partner with you to classify your materials, identify hazards, and propose practical solutions to address your process, storage, and transportation needs.

DEKRA has a fully equipped laboratory, including:Reaction Calorimeter (RC1), Differential Scanning Calorimeter (DSC), Accelerating Rate Calorimeter (ARC ®), to determine the thermal data necessary for thermal process safety and storage of chemicals, evolved gas collection and analysis, physical properties testing and transportation requirements testing under the United Nations guidelines (including UN/DOT H.2, UN/DOT H.4).

DEKRA can provide answers to the basic questions asked in understanding of thermal data:

  • What quantity of energy release is dangerous?
  • How can the potential adiabatic temperature increase and the time to the maximum rate adiabatic be used to determine a worst-case scenario and its consequences?
  • How can the thermal data of the desired and unintended reactions be combined to develop cooling failure scenario and its criticality?
  • How can decomposition reactions be characterized, including identifying if they are autocatalytic?

DEKRA has global reach with decades of calorimetry testing and engineering services for many industry segments. We will partner with you to select the right strategy that fits your specific needs. Contact Us to request more information.

DEKRA Specialized Testing

Powder Layer Screening Test (or Air Over Layer Test)

The powder layer test is used to evaluate the thermal stability of powders and dusts in dryers where heated air is circulated over a powder layer. It is intended to simulate the conditions to which materials are exposed in various types of dryers, including tray, band, and cross-flow.

Bulk Solid Screening Test

The Bulk Solid Test is used to evaluate the thermal stability of bulk solids, powders, and dusts during drying and related operations. It is intended to simulate the conditions to which materials are exposed when they collect in certain types of dryers or downstream in hoppers, silos, drums, or bags.

Aerated Solid Screening Test

The Aerated Powder Test is used to evaluate the thermal stability of powders and dusts during drying operations in which a heated air stream passes through the material, such as in circulating band and fluidized bed dryers.

Isothermal Test - Basket Test

Isothermal Basket Tests is a more exacting test which can be used to identify the minimum onset temperature of exothermic activity for a powder or dust sample This can be used to determine the maximum safe operating or storage temperature for virtually any vessel size or geometry.

Self-Accelerating Decomposition Tests (SADT)

SADT tests are used to provide critical information on the thermal stability of the materials in storage and transportation. DEKRA provides testing for both the UN/DOT H.2 and H.4, as well as full scale package testing per UN/DOT H.1. We can also provide information on the Self Accelerating Polymerization Temperature (SAPT) for the materials.

Technical Articles/Downloads

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