Hazards Analysis, Code Compliance & Procedure Development

Services to identify process safety hazards and facilitate compliance with established standards and codes.

Combustible Dust Testing

Laboratory testing to quantify dust explosion and reactivity hazards

Flammable Gas & Vapor Testing

Laboratory testing to quantify explosion hazards for vapor and gas mixtures

Chemical Reactivity Testing

Laboratory testing to quantify reactive chemical hazards, including the possibility of material incompatibility, instability, and runaway chemical reactions

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 safety handle the effluent discharge from an overpressure event

Thermal Stability

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


Classification of hazardous materials subject to shipping and storage regulations

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents


Model transport of airborne virus aerosols to guide safe operations and ventilation upgrades


Model transport of contamination for source term and leak path factor analysis

Fire Analysis

Model transport of heat and smoke for fire analysis

Flammable or Toxic Gas

transport of flammable or toxic gas during a process upset

OSS consulting, adiabatic & reaction calorimetry and consulting

Onsite safety studies can help identify explosibility and chemical reaction hazards so that appropriate testing, simulations, or calculations are identified to support safe scale up

Mechanical, Piping, and Electrical

Engineering and testing to support safe plant operations and develop solutions to problems in heat transfer, fluid flow, electric power systems

Battery Safety

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

Hydrogen Safety

Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen

Spent Fuel

Safety analysis for packaging, transport, and storage of spent nuclear fuel

Decommissioning, Decontamination and Remediation (DD&R)

Safety analysis to underpin decommissioning process at facilities which have produced or used radioactive nuclear materials

Laboratory Testing & Software Capabilities

Bespoke testing and modeling services to validate analysis of DD&R processes

Nuclear Overview

Our Nuclear Services Group is recognized for comprehensive evaluations to help commercial nuclear power plants operate efficiently and stay compliant.

Severe Accident Analysis and Risk Assessment

Expert analysis of possible risk and consequences from nuclear plant accidents

Thermal Hydraulics

Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions

Environmental Qualification (EQ) and Equipment Survivability (ES)

Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions

Laboratory Testing & Software Capabilities

Testing and modeling services to support resolution of emergent safety issues at a power plant

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


Our highly experienced team keeps you up-to-date on the latest process safety developments.

Process Safety Newsletter

Stay informed with our quarterly Process Safety Newsletters sharing topical articles and practical advice.


With over 40 years of industry expertise, we have a wealth of process safety knowledge to share.

Recent Posts

Pre-job Brief – A Smart Tool for Process Safety and More

Posted by Sara Peters on 09.22.15

I admit it. Since childhood, I have been a fan of the musical film The Sound of Music starring Julie Andrews and Christopher Plummer.  As a student of voice from a young age, a song from the musical that I particularly liked was Do-Re-Mi which was used to teach the Von Trapp children how to sing. It begins with the lyrics "Let’s start at the very beginning, a very good place to start."  If you think about it, these are wise words to consider when jumping into any activity in life.  re-job lanning for safe Work

In our labs, we work on many very detailed projects.  As our business grows, we are finding that many of those projects require the expertise       of several different people and departments across the company.   One way we ensure that these projects run as smoothly and as risk free as possible is by utilizing pre-job briefs. Although these are typically held as a final phase of job planning, a pre-job brief is really the beginning of the actual project's work. And, no matter how much planning is put into a project, the proper communication of the plans moving into the execution phase is critical to its success.  Moreover, as a company that specializes in process safety as it relates to severe accidents in industry, ensuring that the job is performed without risk to our employees or our customers is especially important. We emphasize working safe as a priority and delivering a quality product as standard, and take the same approach that we recommend to our clients towards safe operations internally. 

The Human Performance Handbook issued by our parent company, Westinghouse Electric Company, LLC provides this definition of the term: “A pre-job brief is a planned interactive discussion that occurs  just prior to a job, task or prospect and involves all related personnel/team members/stakeholders.” 

Although it became common practice as a nuclear industry Human Performance concept, it is really a common sense good business approach applicable to any type of job.  A briefing before a work begins helps keep a project on track from the get go. It not only helps ensure that that every person touching the project has a full understanding of the project and their role before work commences and is adequately qualified for the role assigned to them, it provides an opportunity to define the expectations of the work which improves efficiency and provides team members with awareness of the potential areas where things could go wrong in an effort to prevent their occurrence.

Some critical elements to include in a this meeting are:

  • Task purpose/scope
  • Procedural review
  • Roles and responsibilities of team members
  • Potential issues/ hazards, and the mitigation plan
  • Questions

It should be viewed as a knowledge sharing session to ensure everyone involved is on the same page. In his 2014 article Make Your Pre-job Briefing an Open Dialogue on Safety, David Jackson, Director of Corporate Safety, NAES Corp., suggests making a it a focused dialogue tailored to the task at hand versus a monologue. This cultivates “Intelligent, open conversation among team members.” Brilliant! This approach can also foster teamwork by engaging everyone in the process as well as providing an opportunity for them to share their knowledge where applicable.  Jackson also recommends closing the meeting by asking each team member to affirm their understanding of their responsibilities and their ability to complete the work as well as reminding them that if at any time they have a question, they should stop and ask. Again, a GREAT point because it really is better to ask a question than guess and risk putting themselves, their team members or the job itself in danger.

Although the risk of injury in my job as a writer is minimal – I mean I might get a paper cut, strain my eyes or break a nail, I still find that having some sort of discussion about the varied projects I work on detailing the expected outcome before work begins helps me start off in the right direction and work smarter in the process.  Hopefully, you can see the value of a pre-job brief in your own work, too.

If you are looking for direction to assure your company is following safe practices contact Zach Hachmeister at 630-887- 5223               

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Topics: process safety, nuclear safety, safety, safety hazard


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