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Laboratory testing to quantify dust explosion and reactivity hazards

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Develop critical safety data for inclusion in SDS documents

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Laboratory testing to quantify explosion hazards for vapor and gas mixtures

Classification of hazardous materials subject to shipping and storage regulations
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
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Develop critical safety data for inclusion in SDS documents

Thermal Stability

Safe storage or processing requires an understanding of the possible hazards associated with sensitivity to variations in temperature

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Data demonstrate the consequences of process upsets, such as failed equipment or improper procedures, and guide mitigation strategies including Emergency Relief System (ERS) design
Reaction Calorimetry
Data yield heat and gas removal requirements to control the desired process chemistry
Battery Safety

Testing to support safe design of batteries and electrical power backup facilities particularly to satisfy UL9540a ed.4

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Cable Testing
Evaluate electrical cables to demonstrate reliability and identify defects or degradation
Equipment Qualification (EQ)
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
Water Hammer
Analysis and testing to identify and prevent unwanted hydraulic pressure transients in process piping
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Identify and eliminate potential sources of unwanted vibration in piping and structural systems
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Analysis and testing to identify and prevent intrusion of gas or air in piping systems
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Dust Hazards Analysis
Evaluate your process to identify combustible dust hazards and perform dust explosion testing
On-Site Risk Management
On-site safety studies can help identify explosibility and chemical reaction hazards so that appropriate testing, simulations, or calculations are identified to support safe scale up
DIERS Methodology
Design emergency pressure relief systems to mitigate the consequences of unwanted chemical reactivity and account for two-phase flow using the right tools and methods
Deflagrations (Dust/Vapor/Gas)

Properly size pressure relief vents to protect your processes from dust, vapor, and gas explosions

Effluent Handling

Pressure relief sizing is just the first step and it is critical to safely handle the effluent discharge from an overpressure event

FATE™ & Facility Modeling

FATE (Facility Flow, Aerosol, Thermal, and Explosion) is a flexible, fast-running code developed and maintained by Fauske and Associates under an ASME NQA-1 compliant QA program.

Mechanical, Piping, and Electrical
Engineering and testing to support safe plant operations and develop solutions to problems in heat transfer, fluid, flow, and electric power systems
Hydrogen Safety
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
Thermal Hydraulics
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
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Our Nuclear Services Group is recognized for comprehensive evaluations to help commercial nuclear power plants operate efficiently and stay compliant
Radioactive Waste
Safety analysis to underpin decomissioning process at facilities which have produced or used radioactive nuclear materials
Adiabatic Safety Calorimeters (ARSST and VSP2)

Low thermal inertial adiabatic calorimeters specially designed to provide directly scalable data that are critical to safe process design

Other Lab Equipment and Parts for the DSC/ARC/ARSST/VSP2 Calorimeters

Products and equipment for the process safety or process development laboratory


Software for emergency relief system design to ensure safe processing of reactive chemicals, including consideration of two-phase flow and runaway chemical reactions


Facility modeling software mechanistically tracks transport of heat, gasses, vapors, and aerosols for safety analysis of multi-room facilities


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Published September 12, 2017

Combustible Dust Hazard 20L Chamber Go/No Go Test, Explosion Severity Test

Video transcript

The lab behind me houses our 20 liter chambers. It gives us a variety of data points, one of which is a confirmation of our Go/No-Go tests that we did in our modified Hartman a moment ago. It also gives us the explosion severity test, which gives you the KSD and Pmax values, also the minimum explosible concentration, or MEC, and the limiting oxygen concentration, or LOC.

The most commonly conducted tests in the 20 liter chamber finds the KST and Pmax value; this helps you determine the proper size of your vents on your dust collector. It also lets you know if you need any explosion protection or explosion suppression. Relate this test to a boxer; KST tells you how fast a punch is being delivered, while the Pmax tells you how strong the punch is.

Conducting tests in the 20 liter chamber can sometimes take up to a full day, maybe even more; it all depends on the material. Sometimes each sample can take up to 30 trials to determine what that true value is. The minimum explosible concentration, or MEC, tells you the minimum amount of dust that can be suspended in the air before causing a reaction. The determination of the test tells you how many grams per cubic meter is needed in order to cause an issue. It's a frame of reference; if you're standing in a dust cloud with a concentration of 40 grams per cubic meter and holding a 40 watt bulb at arms length, you would not be able to see the light from that bulb. The limiting oxygen concentration, or LOC, tells you how much of an inert atmosphere is needed to prevent an explosion from occurring. Oxygen is an element in the explosion pentagon that can be controlled by adding nitrogen into the atmosphere of the operation. The nitrogen reduces the amount of oxygen to mitigate risks of an explosion event. All of these tests have valuable data to help you characterize your material.

The Fauske onsite service team is available to come to your facility or just help you with the next phase of the process and decide on what testing is now needed. Fauske & Associates is here for you to serve your process safety needs. Let us know how we can be a resource.

If you are interested in a go/no go test or other testing services, contact us below.

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