Chemical Process Evaluation

Accurately detect and identify potential reactive chemical hazards

Our UK Chemical Process Evaluation laboratory generates thermal screening and reaction calorimetry test data for your hazardous materials or reactions.

91% Rated Excellent Turnaround

90% Rated Excellent Response to Contact

83% Rated Excellent for Report Content

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Understand the hazardous nature of your materials in 3 simple steps

Obtaining and integrating ARSST data into your process has never been so easy.

Step 1: Contact Us

Fill out the form today and one of our experts will reach out within 24 hours to learn more about your project.

Step 2: Prepare & Ship

We'll tell you what samples we need, the quantities we require, and how to prepare and ship to our UK laboratory.

Step 3: Your Report

Once we've received your samples, we'll begin testing. You will get your report within 21 working days (test dependant).
Our RC can provide the below valuable outputs:
Vacuum jacketed reaction calorimetry (-60 – 240 °C)
Accurate quantification of reaction enthalpy in heat flow or power compensated isothermal calorimetry modes
Adiabatic temperature rise
Maximum Temperature of Synthesis Reaction (MTSR)
Our RC can also provide the below:
Ramped heating batch or semi-batch reactions possible
Gas flow determination – for gas producing reactions or UN Test N.5
Gas sparges – inerting or reactive gases
Automated dosing / solids dosing
Reaction optimisation
~500 ml vessel, adaptable, stirring that directly simulates flow dynamics, automated syringe/gravimetric dosing, directly scalable data, atmospheric pressure only, samples and reactions can be prepared and sealed under different headspaces.

RC data you can count on

Gather RC data to correctly identify and mitigate process hazards without waiting months for results or having to pay tiered premiums.

Fastest UK Turnaround

Keep your process projects on track and the regulators off your back with a quote delivered to you in days. Following receipt of your sample you'll have your actionable report within 3 weeks, so you keep projects on schedule and avoid costly downtime.

Accredited QMS Data

Rest assured knowing that the data you receive is accurate, reproducible and legally defensible. Although unaccredited, your RC data will be tested under our accredited Quality Management System.

Transparent Pricing

We take the time to understand your process and will only recommend the tests you need. Tailored and effective testing proposals help you save time and reduce financial pressure.

Post-Project Support

Our support doesn't end when the test results are delivered. We provide ongoing interpretation, guidance, and application of your data, helping you integrate insights into safe, effective process decisions

Get in touch to find out how Sigma-HSE
can help you prevent chemical reaction hazard incidents

Our dedicated team of experts is committed to helping ensure that your process operations will not generate fires, explosions or thermal runaway events so you can maintain a safer working environment and comply with the regulatory standards.
Contact us today for a Free RC Quote
Fill out the form below and we’ll be back in touch within 24 hours.

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Chemical reaction hazard testing solutions for every industry

Our chemical process evaluation expertise and knowledge spans multiple industries and our solutions can be applied to your specific chemical processing operations.
Aerospace
Pharmaceuticals
Agrochemicals & Pesticides
Life Sciences
Chemical Manufacturing
Contract Manufacturers
Transportation & Logistics
Paints & Solvents
Fine Chemicals
Research & Development

Discover our range of chemical reaction hazard testing solutions

We also undertake the following thermal screening and calorimetry tests to simulate full scale process, and process upset conditions. ​

Differential Scanning Calorimetry (DSC) 

ASTM E 537-24
ISO/IEC:17025 Accredited
This test is conducted as a screening method to assess the extent and presence of enthalpic changes and to approximate both the temperature of initiation and enthalpies (heats) of solids, liquids or slurries. 
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Accelerating Rate Calorimetry (ARC)

ASTM E 1981-22
ISO/IEC:17025 Accredited
This test is conducted to assess the time, temperature and pressure data of a material as it undergoes a physicochemical change under near adiabatic conditions.
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Advanced Reactive System Screening Tool (ARSST)

Recognised industry standard test
This test is a pseudo-adiabatic calorimeter batch reactor tool that is used to quickly identify potential reactive chemical hazards in processes including the determination of thermal decomposition onsets.
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Carius Tube

Recognised industry standard test
It is primarily undertaken to investigate exothermic activity and gas generation. It can aid in the detection of exothermic activities such as onset temperatures and identify the pressure effects of gas generation.
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Frequently asked questions

Reaction Calorimetry is an industry standard tool for assessing Chemical Reaction Hazards for process scale-up. Method bespoke to the reaction under study.

Each test involves a bespoke developed method depending on the specific requirements of the chemical reaction to be studied.

The Reaction Calorimetry test consists of a well-instrumented apparatus with adaptable peripheral measurement and processing instruments. The reaction vessel holds modest volumes of material (~300 ml) allowing for highly representative mixtures of bulk reactions, and can study the accurate heat of reactions and kinetics for reagent additions. Reactions are performed under isothermal conditions, and by use of well calibrated equipment the heats of reactions are determined.

Either Heat Flow Calorimetry or Power Compensated Calorimetry methods can be used to detect temperature rises in the reaction mixture, and the mode is selected to best suit the reaction to be studied.

At Sigma-HSE, we offer both the Heat Flow Calorimetry test and the Power Compensated Calorimetry test to your specific requirements.

The selection of different operational modes depends on material viscosities, exothermic magnitude and phase mixtures. Typical data outputs can include the following:

  • Heat of reaction
  • Heat of mixing/addition
  • Total adiabatic temperature rise
  • Gas generation quantification
  • Tempering temperature
  • Reaction kinetics information

Data from Reaction Calorimetry allows for accurate assessment of Chemical Reaction Hazards for a desired chemical reaction process.

The outputs allow for the adequate design of process safety systems to take your process from lab or pilot plant scale to full production; with the confidence that the process has been assessed for potential hazards.

Test your materials

Getting your hazardous materials tested is an important step to prevent fires, explosions and other process-related hazards. Get in touch to learn more about how we can assist you in keeping your process plant and unit operations safe from the risks of thermal runaway.
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