Process Safety Management

Developing optimum safety and risk management systems, guidelines and standards, and audit protocols worldwide.

A proactive approach, coupled with properly planned and implemented safety and risk management systems can help you comply with local, state and federal PSM regulations, as well as minimize loss of life, environmental impact, equipment damage, citations and litigation.

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How We Can Help You

Integrating best practices with cost-effective solutions to address program deficiencies.

Helping manage risk with facility siting studies, assessments and recommendations.

Decades of experience leading incident investigations for process industry companies.

We prepare expert opinion reports and provide expert testimony for process incident cases.

Experienced engineers who have performed LOPAs on a wide range of facilities and terminals.

Our experts are at the forefront of pipeline Process Safety Management proficiency.

Senior knowledgeable process safety engineers prepare, organize, lead and document PHAs.

Proven track record of performing QRAs for facilities, pipelines and transportation routes.

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Featured Videos


PSM Frequently Asked Questions

Does your facility need a PSM program? Is your PSM program effectively implemented?

If your facility uses, stores, manufactures, handles, or moves flammable or highly hazardous chemicals on site above the threshold quantity (TQ), OSHA does require PSM implementation. Learn the facts about process safety management.

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Our Team

Daniel Nguyen, PE & PMP

Senior Partner & CTO

Mr. Nguyen manages product development, along with all aspects of pressure relief and flare systems evaluation and design projects and hazard identification in the petrochemical, chemical, and pharmaceutical industries. Mr. Nguyen has conducted many consequence analysis and quantitative risk analysis (QRA) studies involving a wide range of flammable materials. His extensive presentation experience includes topics such as vibration-induced fatigue, managing complex pressure relief and flare systems projects, and SuperChems™ training and updates. He is fluent in English and Vietnamese.

As CTO, Mr. Nguyen leads the development of ioMosaic’s Process Safety Office® software, a technical calculation tool used by engineers and risk analysts to calculate and assess hazards and risks. He is responsible for a team of software engineers creating and improving the many integrated components of Process Safety Office®, which include SuperChems™ and PHAGlobal®.

Before joining ioMosaic, Mr. Nguyen was a manager in the Safety and Risk Management division at Arthur D. Little, Inc., where he conducted a wide range of process safety and risk management activities. Prior to joining Arthur D. Little, Mr. Nguyen was employed at Aspen Technology, Inc. as a process development engineer. While at Aspen, he developed and enhanced several distillation/separation models and was among the key members who developed ASPEN Plus’ first graphical user interface.

Project Sampling

Consolidated a large-scale emergency response plan that coordinates dozens of institutions and agencies to share the same resources in a highly concentrated area within the City of Boston.

Worked with the U.S. Coast Guard, local fire departments, and City of Boston to review the state of preparedness and consolidated existing emergency plans for responding to liquefied natural gas (LNG) emergencies within the City of Boston and contiguous areas during LNG ship transit into the Boston Harbor.

Led and participated in dozens of commercial HAZard and OPerability (HAZOP) studies, which focused on the following systems: batch processes, medical devices, burner management systems, utilities, gas/steam/diesel turbines, aerosol can products, fire protection, and flare systems.

Conducted many PSM and RMP audits for a variety of facilities.

Reviewed patents and conducted a technical and economic feasibility study of nitrogen tri-fluoride manufacturing for a joint venture between companies in the United Kingdom and South Africa.


Project Management Professional (PMP)

Professional Engineer (PE), Texas

Professional Engineer (PE), Massachusetts

Tufts University 
M.S. Chemical Engineering

Tufts University 
B.S. (Magna Cum Laude) Chemical Engineering

Featured Case Studies

Corporate Guidance On Risk Management

The chemical company of a large integrated energy company was developing a corporate standard for LOPA, which incorporated a risk ranking matrix. The company was interested in obtaining an independent review of the design of the risk matrix, and in benchmarking the underlying risk tolerability criteria with generally accepted industry norms.

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A large Canadian refinery was performing risk assessments to identify personnel, environmental, and operational hazards. This work was being done on a planned schedule with a different unit being reviewed annually. The challenge was to use Process Hazard Analysis (PHA) methodologies that provide an effective analysis appropriate to the unit to be studied and the potential hazards.
When a tank car failed at a customer’s plant, a release of toxic gas occurred. Our client, the supplier of the chemical, was the subject of a class action lawsuit.

Companies have implemented their process safety management programs to comply with OSHA and EPA requirements, but they continue to have accidents. Process safety management programs can meet the letter of the law, but may not be effective in preventing accidents.


Featured Services

Litigation Support

ioMosaic posesses both technical expertise and experience in the operation of plants and equipment. This background enables us to evaluate the evidence associated with accidents and determine the most probable causes, given the available information. Read more...

Emergency Relief System Design

From development of the industry’s most widely used PRFS software to serving in leadership roles on global PRFS forums, we have played a pivotal role in defining and implementing relief system best practices for corporations worldwide. Read more...

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