Moisture, volatile matter, ash, and fixed-carbon fractions
single ash-content determination
Material Analysis · Composition & Elemental
Coal Proximate and Quality Analysis (Proximate analysis)
Characterise moisture, volatile matter, ash, and fixed-carbon fractions, mass change versus programmed temperature, and residual inorganic content using a scope agreed around your sample and decision.
- Price
- from£15 per sample, excl. VAT
- Turnaround
- 10 working days Preparation and scope dependent
- Available platforms
- LECO TGA801ELTRA THERMOSTEP
- Typical outputs
- Mass-fraction resultsHeating programme and calculation basisReplicate and quality-control summaryProcessed chromatogram or spectrum
Why this service
What Proximate analysis can help you understand
Coal Proximate and Quality Analysis is selected when the project needs defensible information on moisture, volatile matter, ash, and fixed-carbon fractions, mass change versus programmed temperature, or…
Mass change versus programmed temperature
full proximate analysis
Residual inorganic content
automated thermogravimetric method
Choose the scope
Start from the question, not the tool
The method, preparation route and reporting depth depend on what you need to decide.
Single ash-content determination
moisture, volatile matter, ash, and fixed-carbon fractions
- Best used when
- moisture, volatile matter, ash, and fixed-carbon fractions
- Typical result
- Mass-fraction results
- Preparation note
- Exact mass and any drying or dispersion step are confirmed after technical review.
Full proximate analysis
mass change versus programmed temperature
- Best used when
- mass change versus programmed temperature
- Typical result
- Heating programme and calculation basis
- Preparation note
- Confirm dimensions, cutting permission and whether the original geometry must be preserved.
Automated thermogravimetric method
residual inorganic content
- Best used when
- residual inorganic content
- Typical result
- Replicate and quality-control summary
- 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.
Mass-fraction results reported with the agreed units, sample reference and measurement conditions.
Heating programme and calculation basis supplied in a labelled format suitable for direct sample or condition comparison.
Replicate and quality-control summary provided with the processing basis and quality checks agreed during technical review.
Processed chromatogram or spectrum 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. |
| Solid / component | Provide a clean, stable and clearly labelled specimen with the target face or region identified. | Confirm dimensions, cutting permission and whether the original geometry must be preserved. |
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 Coal Proximate and Quality Analysis?
Provide powder / particles, solid / component as applicable. Exact quantity, dimensions and preparation are confirmed during technical review.
Which analysis option should I choose?
Choose the mode around the decision you need to make. For moisture, volatile matter, ash, and fixed-carbon fractions, start with single ash-content determination; add full proximate analysis when comparison or quantification is required.
How long will the test take?
Typical turnaround is 10 working days after sample acceptance and method confirmation.
What can limit the result?
Results are method- and condition-specific. Losses or reactions during preparation can bias volatile and moisture values.
Configure the service
Send the information needed to scope Proximate analysis 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