Microscale Combustion Calorimeter
ASTM D 7309
Microscale Combustion Calorimeter was developed by the Federal Aviation Administration (FAA) to offer industry a research tool to assist the FAA in its mandate to dramatically improve the fire safety of aircraft materials.
The product is becoming a mainstay in research laboratories due to its ability to obtain meaningful test data with a sample size in the range of 0.5 mg to 10 mg. The instrument has been validated by a national consensus organisation ASTM International and is now the subject of an ASTM standards publication, designated D7309. Microscale Combustion Calorimetry (MCC), sometimes referred to as Pyrolysis-Combustion Flow Calorimetry (PCFC), measures the rate at which the heat of combustion of fuel gases are released by a solid during controlled pyrolysis in an inert gas stream. The fuel gases are mixed with excess oxygen and combusted (oxidised) at high temperature, and the instantaneous heat of combustion of the flowing gas stream is measured by oxygen consumption calorimetry.
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Specification & Features
Microscale Combustion Calorimeter
The flammability test method quickly and easily measures the combustibility of plastics, wood and textiles etc. Only a few milligrams of sample are needed and results are obtained in minutes, instead of hours or days of analysis. The test apparatus shown above, provides a wealth of information on the fire hazard of a material.
- State of the art paramagnetic oxygen transducer (as used on high end Heat release apparatus e.g. Cone Calorimeter)
- Modern ergonomic laboratory design.
- 13.1″ integrated touchscreen.
- Integrated Windows computer.
- Extensive Calibration and testing software package.
- High precision sample platform positioning system.
- 10mm bore bespoke alumina furnace comes with dual Kanthal robust heaters for longevity and performance.
- Paramagnetic oxygen transducer for high accuracy oxygen measurements to +/-0.1% and long life.
- High accuracy mass flow controllers for oxygen and nitrogen Gas supply
- High performance mass flow meter for combustion gas measurement.
- Sample heating rate 0.2 -5 k/s within +/- 5% of desired rate.
- Method A (Anaerobic) and Method B (Aerobic) switchable via software.
- Heating range 0-1000˚C.
- Detection limit 5mW.
- Repeatability +/- 2% (5mg sample).
- Separate analysis software; can be installed on other office computers to process results.
Technical Data & Requirements
- Electrical: 230 volts AC 50 Hz. 10 Amps.
- Ambient Temp: Operating 10°C to 35°C.
- Dimensions Footprint of Instrument & Computer: – 600mm (W) x 1025mm x (H) x 500mm (D).
- Weight (Kg): 42 Kg.
Gas Supplies
- Nitrogen gas: 99.9% pure. Pressure: 2bar.
- Flow: 80cc/m, 100cc/m maximum, 6mm pushfit fitting.
- Oxygen Gas: 99.9% pure. Pressure: 2bar.
- Flow: 20cc/m, 50cc/m maximum, 6 mm pushfit fitting.
- Compressed Air(oil and water free): Pressure: 3-4 bar.
- 6 mm pushfit Fitting.
- Fume extraction: Customer supplied – 5nl/s, 6 mm pushfit fitting.
- Instrument exhausts up to 150cc/min. 6mm tube pushfit fitting.