There is a reason manual flash point testers remain in active use across laboratories worldwide, even as automation becomes more accessible. For many operators, manual control is not a limitation — it is a deliberate choice. The Flash-93M is built for those laboratories: a robust, benchtop Pensky-Martens Closed Cup (PMCC) flash point tester that puts the operator in full control of every stage of the test.
Designed to determine the flash point of petroleum products and biodiesel across a wide temperature range of 40°C to 360°C, the Flash-93M complies with the three major international PMCC flash point testing standards — ASTM D93, ISO 2719, and IP 34. Whether you are running a routine quality check on diesel fuel, testing a lubricating oil against a specification, or characterising a new biodiesel blend, the Flash-93M gives you the platform to do it accurately and repeatably.
The instrument features an electrically heated air bath with an electronic voltage regulator for precise, stable temperature control — one of the most critical variables in manual flash point testing. A motorised stirrer provides consistent sample agitation throughout the test, and a cooling fan accelerates the stove cool-down after each test, reducing the waiting time between consecutive samples.
A key differentiator of the Flash-93M is the availability of both a standard brass test cup and an optional stainless steel test cup for samples that are corrosive or chemically aggressive. This material flexibility extends the instrument’s usable range beyond typical petroleum products into specialised chemical and industrial applications. Compact, reliable, and built to withstand the demands of routine laboratory use, the Flash-93M is a practical and cost-effective instrument for any laboratory that performs PMCC flash point testing.
Manual flash point testers serve a specific and important role in the laboratory environment. Here is why laboratories consistently choose the Flash-93M as their manual PMCC instrument of choice:
The Flash-93M is designed around the core requirements of accurate manual PMCC flash point testing — stable heating, consistent stirring, reliable ignition, and rapid recovery between tests.
The Flash-93M is suitable for manual PMCC flash point determination across a wide range of liquid sample types:
All specifications are subject to change without prior notice. Please contact us for the latest datasheet.
| Specification | Details |
|---|---|
| Model | Flash-93M (Manual Pensky-Martens Flash Point Tester) |
| Test Methods | ASTM D93, ISO 2719, IP 34 |
| Temperature Range | 40°C to 360°C |
| Heating System | Electrically heated air bath with electronic voltage regulator |
| Stirring Mechanism | Motorised stirrer for consistent sample agitation |
| Ignition Source | Manual gas ignition and electric ignition |
| Cooling System | Inbuilt electric cooling fan for rapid stove cool-down post-test |
| Test Cup (Standard) | Brass test cup (as per ASTM D93 / ISO 2719) |
| Test Cup (Option) | Stainless steel test cup for corrosive or aggressive samples |
| Power Supply | 230V |
| Power Consumption | 700W |
| Dimensions (W × D × H) | 400 mm × 330 mm × 520 mm |
| Weight | 11 kg |
The Flash-93M is designed in full compliance with ASTM D93, ISO 2719, and IP 34 — the three principal international standards for Pensky-Martens Closed Cup (PMCC) flash point determination. Test results produced on the Flash-93M are accepted by regulatory authorities, quality certification bodies, and international trading partners operating under any of these standards.
In a manual instrument like the Flash-93M, the operator controls the heating rate using the voltage regulator, triggers the ignition source manually at each test interval, and observes the flash visually. In a semi-automatic instrument, flash detection is automated but some manual control is retained. In a fully automatic instrument, the entire test cycle — heating, stirring, ignition, detection, and result recording — is performed by the instrument under software control. The manual approach is preferred in training environments, low-volume laboratories, and situations where the test protocol requires direct operator participation.
ASTM D93 and ISO 2719 specify a brass test cup as the standard material for PMCC testing of petroleum products. However, some samples — particularly chemically aggressive or corrosive liquids — can react with brass or contaminate it, affecting results and damaging the cup. The optional stainless steel test cup allows the Flash-93M to be used safely with these sample types without requiring a separate instrument, extending its practical application range into chemical and specialty testing environments.
The Flash-93M supports both manual gas ignition and electric ignition. The choice of ignition source can be made based on the laboratory’s available infrastructure, safety regulations, and the specific requirements of the test method being followed. Both options are fully compatible with ASTM D93, ISO 2719, and IP 34 test procedures.
After a flash point has been detected and the test is complete, the stove needs to cool down before a new sample can be introduced. Without active cooling, this can take a significant amount of time at high test temperatures. The inbuilt electric cooling fan accelerates this cool-down process, reducing the interval between consecutive tests and improving overall laboratory throughput — even on a manual instrument.
Yes. The Flash-93M operates up to 360°C, which comfortably covers the flash point range required for biodiesel testing. Biodiesel and biodiesel blends typically require a minimum flash point above 130°C, as specified in EN 14214 and ASTM D6751, and the Flash-93M is capable of accurately determining flash points across this range under ASTM D93 and ISO 2719 procedures.
The Flash-93M uses an electrically heated air bath with an electronic voltage regulator. The operator controls the heating rate by adjusting the voltage regulator, which directly governs the power supplied to the heating element. This gives stable, controllable heating conditions and allows the operator to maintain the test heating rate specified by ASTM D93 and ISO 2719 (typically 1°C to 1.5°C per minute in the vicinity of the expected flash point).
Yes, and it is one of the reasons many educational institutions and industrial training facilities choose manual instruments. Operating the Flash-93M gives trainees direct, hands-on familiarity with every step of the PMCC flash point determination procedure — from setting the heating rate and monitoring sample temperature to performing ignition dips and observing the flash. This foundational understanding is valuable before progression to semi-automatic or fully automatic instruments.
The Flash-93M operates on a standard 230V single-phase power supply and consumes 700W during operation. Its compact footprint of 400 mm (W) × 330 mm (D) × 520 mm (H) and weight of 11 kg make it easy to position on any standard laboratory bench. If the gas ignition option is used, an appropriate gas supply point is required at the installation location.
Consistent stirring speed is a specific requirement of PMCC test methods. ASTM D93 and ISO 2719 specify a defined stirring rate that must be maintained throughout the test to ensure the sample temperature is uniform and the vapour space above the sample is properly equilibrated before each ignition attempt. The motorised stirrer in the Flash-93M maintains a controlled, repeatable rotation speed, removing the variability and operator fatigue associated with manual stirring and contributing to more consistent, reproducible results.
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