Thermal transitions, stability, heat flow, expansion, conductivity, or…
standard thermal scan
Performance Testing · Thermal Analysis
Ash Fusion Temperature (AFT)
Use Ash Fusion Temperature (AFT) to evaluate thermal transitions, stability, heat flow, expansion, conductivity, or temperature-dependent behaviour with a scope matched to your sample, application, and decision.
- Price
- from£15 per sample, excl. VAT
- Turnaround
- 7 working days Preparation and scope dependent
- Available platforms
- Carbolite Gero CAF G5
- Typical outputs
- Temperature-dependent curveTransition or thermal-property valuesTest programme and interpretation notesMethod-specific images
Why this service
What AFT can help you understand
The melting point is the temperature at which the solid and liquid states of a solid organic compound reach equilibrium under atmospheric pressure. Pure solid organic compounds generally have a fixed…
Differences between materials, batches, treatments, or service…
controlled-atmosphere or temperature programme
Whether the measured result supports a specification, root-cause, or…
kinetic, modulated, or comparative analysis
Choose the scope
Start from the question, not the tool
The method, preparation route and reporting depth depend on what you need to decide.
Standard thermal scan
thermal transitions, stability, heat flow, expansion, conductivity, or temperature-dependent behaviour
- Best used when
- thermal transitions, stability, heat flow, expansion, conductivity, or temperature-dependent behaviour
- Typical result
- Temperature-dependent curve
- Preparation note
- Exact mass and any drying or dispersion step are confirmed after technical review.
Controlled-atmosphere or temperature programme
differences between materials, batches, treatments, or service conditions
- Best used when
- differences between materials, batches, treatments, or service conditions
- Typical result
- Transition or thermal-property values
- Preparation note
- Exact mass and any drying or dispersion step are confirmed after technical review.
Kinetic, modulated, or comparative analysis
whether the measured result supports a specification, root-cause, or development decision
- Best used when
- whether the measured result supports a specification, root-cause, or development decision
- Typical result
- Test programme and interpretation notes
- Preparation note
- Exact mass and any drying or dispersion step are confirmed after technical review.
Common outputs
A result package matched to the decision you need to make
Fields, conditions, processing and file formats are confirmed before work begins.
Temperature-dependent curve reported with the agreed units, sample reference and measurement conditions.
Transition or thermal-property values supplied in a labelled format suitable for direct sample or condition comparison.
Test programme and interpretation notes provided with the processing basis and quality checks agreed during technical review.
Method-specific images included when selected in the confirmed reporting scope.
Sample requirements
What to provide before work begins
Provide representative, clearly labelled samples and identify the decision, feature or comparison that matters.
| Suitable sample | Submission requirement | Planning note |
|---|---|---|
| Powder / particles | Provide a dry, homogeneous and clearly labelled sample in a sealed container. | Exact mass and any drying or dispersion step are confirmed after technical review. |
Objective: state the decision, comparison or acceptance criterion the work must support.
Handling and access: declare hazards, instability, confidentiality, file constraints or special logistics before dispatch or transfer.
Questions and answers
Common planning decisions
Short answers to issues that can change preparation, scope, timing or interpretation.
What should I send for Ash Fusion Temperature (AFT)?
Provide powder / particles as applicable. Exact quantity, dimensions and preparation are confirmed during technical review.
Which scope should I choose?
Choose the scope that matches the decision, comparison and reporting depth you need; TESTDOG confirms the final route after technical review.
What will I receive?
Typical outputs include temperature-dependent curve, transition or thermal-property values, test programme and interpretation notes. Final files follow the confirmed reporting scope.
How long will it take?
Typical turnaround is 7 working days after sample acceptance and method confirmation.
Configure the service
Send the information needed to scope AFT correctly
- Sample form, material, dimensions and quantity
- Feature or decision the result must address
- Required comparison, acceptance criterion or reference
- Preferred output and reporting depth