Combustible Dust and Chemical Reactivity Testing

The Science of Testing

Safe handling of combustible dusts and reactive chemicals require a thorough understanding of dust and chemical properties. Designing a test plan that ensures you obtain the most relevant data needed for your application helps maximize your testing dollars.

Each dust compound has unique physical and chemical characteristics. A good understanding of both is essential to understand the hazards, and ultimately the risks, associated with the dust being handled.

Each reactive chemical or mixture will respond differently to calorimetric variations. Defining flammability, explosibility and chemical reactivity, as well as thermal degradation, instability and sensitivity to ignition is essential to predicting thermal behavior for safe process design and operation.

Experienced Professionals

ioMosaic has extensive experience with the evaluation and interpretation of dust hazard and chemical reactivity test data. We work in concert with the consultants at ioKinetic, LLC, a state-of-the-art testing facility, to provide reliable, efficient and affordable test plan development, testing and analysis.

Combustible Dust Testing

Test

Measurement

Explosion Severity  (KSt, (dP/dt)max, Pmax)

Maximum pressure output and the maximum rate of pressure rise during an explosion

Minimum Ignition Energy (MIE)

Minimum energy that will ignite a dust cloud

Minimum Auto-Ignition Temperature (MAIT)

Minimum temperature that will ignite a dust cloud

Minimum Explosible Concentration (MEC)

Minimum concentration of a combustible dust (dispersed in air) that is capable of propagating a deflagration

Limiting Oxygen Concentration (LOC)

Lowest oxygen concentration required for an explosion when the dust concentration is in the explosive range

Hot Surface Ignition Temperature of Dust Layer

Minimum surface temperature that will ignite a dust layer

* Customized tests also available

Chemical Reactivity Testing

Test

Measurement

Adiabatic Reaction Calorimetry

Temperature and pressure changes as a result of exothermic reactions

Differential Scanning Calorimetry

Caloric changes as a function of temperature

Thermogravi-metric Analysis

Mass loss as a function of time or temperature

* Additional tests also available