Closed Cup Small Scale Flash Point Tester
Koehler Rapid Flash Tester Closed Cup
Methods: ASTM D3278, ASTM D3828, ASTM D4206, ISO 3679, ISO 3680, IP 303, BS 3900, DOT CFR 49-173.115, IATA, and ISO 9038.
- Small Scale flash point tester designed for rapid closed cup equilibrium flash point determination.
- Wide measurement range: Ambient to +300°C.
- Requires only 2 mL (below 100°C) or 4 mL (above 100°C) sample volume.
- Sub-ambient testing capability with optional cooling block.
- Digital LCD readout with NIST-traceable thermometer for verification.
- High repeatability and reproducibility meeting international standards.
- Fast heating rate.
- Compact, lightweight, and easy to set up in any laboratory.
The Koehler Rapid Flash Tester, Closed Cup is a precision small scale flash point tester engineered for fast and reliable determination of flash points in flammable and combustible liquids. Built on Koehler’s long heritage of laboratory instrumentation, this unit is trusted worldwide for small-scale flash point measurement in industries ranging from petrochemicals to paints and coatings.
Standards and Compliance
This instrument is fully compliant with major international standards, including ASTM D3278, ASTM D3828, ASTM D4206, ISO 3679, ISO 3680, IP 303, BS 3900, DOT CFR 49-173.115, IATA, and ISO 9038. Compliance ensures that laboratories can produce results recognised by regulatory agencies, safety organisations, and quality assurance programs. Whether you are meeting transport regulations, performing product classification, or conducting research, the Rapid Flash Tester provides confidence in every result.
Rapid, Reliable Flash Point Testing
One of the main advantages of this mini flash tester is its speed and efficiency. Test times are just one minute for samples below 100°C and two minutes for samples above 100°C. With only 2 mL or 4 mL of sample required, laboratories benefit from reduced material use, lower disposal costs, and improved operator safety. Compared to larger-scale methods, the Koehler Rapid Flash Tester enables laboratories to run multiple tests in the time it would take to complete just one conventional procedure.
Wide Temperature Range and Sub-Ambient Capability
The tester covers a broad measurement range from ambient to +300°C. For volatile liquids and low flash point testing, an optional refrigerant-charged cooling block supports sub-ambient flash point measurement, extending the instrument’s usefulness to a wide array of applications, including volatile solvents, adhesives, and aviation fuels.
Precision Measurement and Repeatability
Accurate results are achieved through a combination of digital LCD readout and a NIST-traceable thermometer, allowing cross-verification and audit compliance. Built-in electronic temperature control provides stable and repeatable heating, while the test cup design ensures consistent vapour equilibrium conditions. Repeatability and reproducibility conform to the precision levels outlined in international methods, giving laboratories confidence in inter-laboratory comparisons.
Compact and User-Friendly Design
Weighing only 2.7 kg with a footprint of 38 × 9 × 13 cm, the Koehler Rapid Flash Tester is ideal for laboratories with limited bench space. The unit features easy sample injection, an integrated syringe holder, and simple electronic controls for preset temperature adjustment. The instrument is both easy to operate and quick to clean, supporting efficient workflows in busy testing environments.
Technical Specifications of Koehler Small Scale Flash Point Tester
| Parameter | Specification |
| Temperature Range | Ambient to +300°C |
| Test Methods | ASTM D3278, ASTM D3828, ASTM D4206, ISO 3679, ISO 3680, IP 303, BS 3900, DOT CFR 49-173.115, IATA, ISO 9038 |
| Sample Volume | 2 mL (≤100°C), 4 mL (>100°C) |
| Display | Digital LCD °C/°F and NIST-traceable thermometer |
| Heating Rate | ~7 minutes from ambient to 100°C |
| Cup Type | Closed equilibrium design, aluminum (optional 316 stainless steel) |
| Dimensions (W × D × H) | 38.1 × 8.6 × 16.2 cm |
| Net Weight | 2.7 kg |
| Power Requirements | 115/230 V, 50/60 Hz |
| Warranty | 1 Year |
The Koehler Rapid Flash Tester is used wherever reliable small scale flash point measurement is required. Applications include:
- Regulatory compliance for safe transport and classification of hazardous liquids.
- Quality assurance testing of consumer products, coatings, and adhesives.
- Petrochemical and petroleum testing for fuels, solvents, and lubricants.
- Research and development where small sample volumes are advantageous.
- Engine oil dilution studies, identifying fuel contamination in lubricants.
This versatility makes the instrument an essential tool in laboratories across the chemical, petroleum, coatings, and consumer product sectors.
