Testing that Reaches the World
Clark Laboratories | Ash Fusion
Analysis for Quality, Environmental Compliance, and Commercial Value
What is Ash Fusion Testing?
Ash Fusion Testing determines the temperatures at which ash begins to soften, deform, melt, and flow under controlled laboratory conditions.
These temperatures are critical indicators of slagging and fouling potential within boilers, furnaces, gasifiers, and industrial combustion systems.
Why Ash Fusion Testing is Important
As combustion temperatures increase, ash can:
- Melt
- Adhere to heat transfer surfaces
- Form slag deposits
- Restrict airflow
- Reduce efficiency
Understanding ash fusion behavior allows operators to:
- Prevent equipment damage
- Improve combustion efficiency
- Reduce maintenance costs
- Optimize fuel blends
› Proximate Analysis Testing
Fuel quality analysis including moisture, ash, volatile matter, and fixed carbon.
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› Sulfur Analysis Testing
Sulfur testing for emissions compliance and product specification verification.
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› Ultimate Analysis Testing
Elemental analysis of carbon, hydrogen, nitrogen, sulfur, and oxygen.
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› BTU & Calorific Value Testing
Measure energy content for fuel valuation and combustion performance.
Typical Ash Fusion Temperatures Evaluated
- Initial Deformation Temperature (IDT)
- Softening Temperature
- Hemispherical Temperature
- Fluid Temperature
These results help predict real-world performance under high-temperature operating conditions.
› Hardgrove Grindability Testing
Evaluate grindability to optimize milling and fuel handling.
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› CRI and CSR Testing
Assess coke reactivity and strength for blast furnace optimization.
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› Ash Fusion Testing
Determine ash melting behavior and slagging potential.
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› Trace Metals Analysis
Analyze nickel, vanadium, mercury, and other trace elements.
Need Petroleum Coke Testing?
Request a quote or speak with a Clark Testing specialist about your project.