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The stainless steel chamber for flame resistance testing in accordance with UL 94 is the ideal tool for reliably evaluating the combustion behavior of materials.
The ASTM D5025-compliant Bunsen burner, with an adjustable support at 0°, 20°, and 45°, the horizontal slide, and the pneumatic adjustment of the flame-to-sample distance allow for precise and repeatable positioning.
The flow meter allows for accurate adjustment of the gas flow, while the digital thermometer with a copper probe measures the flame temperature. The digital timer (resolution 0.1 s) ensures precise control of test times.
Applications: UL 94 testing on horizontal HB and HBF specimens, and on vertical VB and MVB specimens, for solid products and cellular polymeric materials. The inspection window with tempered glass and the LED light facilitate observation of the test; the exhaust fan removes combustion fumes, maintaining visibility.
Why choose it: compliance with standards, complete control of critical parameters, and test repeatability with integrated measurement instruments, enabling rapid and reliable decisions regarding the flame performance of materials.
Instrument for flame resistance test according to UL 94 standard fitted with:
• Stainless steel cabinet with tempered glass viewing window and interior light
• Bunsen burner according to ASTM D5025 standard
• Flow meter for gas flow regulation
• Support for flame angle set (0°, 20°, 45°)
• Slide for the regulation of the position of the flame
• Sample holder according to the standards with sample position regulation
• Digital thermometer for the measurement of the temperature of the flame integrated in the instrument
• Digital Timer with 0.1 second resolution for the measurement of test time
• Exhaust fan to remove combustion fumes
The ability to move the burner in a controlled manner allows it to be positioned exactly under the specimen and to follow its movement during the flame exposure time.
The instrument is equipped with a pneumatically operated slide that is activated by means of a lever located in the front the instrument.
The device allows the operator to perfectly control the position of the flame under the specimen through the inspection window and to obtain highly repeatable test results.
UL 94 requires that the distance between the flame and the specimen be kept constant during exposure of the specimen to the flame.
The distance between the flame and the specimen changes during exposure to the flame due to combustion and the tendency of the specimen to bend.
To enable the operator to correct the distance between the flame and the sample, the instrument has been equipped with a pneumatic slide that allows the sample to be moved vertically. The pneumatic slide is operated by a lever located in the front of the instrument.
This unique feature ensures an important improvement in the repeatability of results and compliance with regulatory requirements.
The control panel includes:
• Digital reading of the temperature of the flame
• Timer for the measure of test time
• Button for Start / Stop button for the Timer
• Button for Reset of the Timer
• Button for activation of internal light
• Button for activation of fume aspiration
The instrument must be connected to a Methan source.
The instrument is equipped with:
• Manometer between between 0 and 25 mBar
• Fluxometer between 0,04-0,36 NL\min with flow regulation knob
• Fluxometer between 0,2-1,3 NL\min with flow regulation knob
Bunsen burner compliant with ASTM D5025 and CEI IEC 60695-11-4 standards equipped with:
• Safety sensor for interruption of gas flow with flame absent
• Ring for the adjustment of the air / gas mix
• Tiltable support for testing with inclined flame (0 °, 20 °, 45 °)
The instrument is supplied with:
• Internal Thermometer with thermocouple for 20 mm Test Flame according to ASTM D 5207 standard.
• Ruler for the check of the height of the flame.
The Thermocuple and the ruler are installed inside the chamber.
To test the temperature of the flame, you only need to move the burner under the Thermocouple using the movement knob.
The instrument is equipped with a manual valve for interrupting the air flow during the test and an aspirator for removing the fumes at the end of the test.
The instrument is equipped with sliding guides in the front and side positions that allow the specimen holders to be placed in the optimum position and their behavior during the test to be inspected through the front window.
The mirror, equipped with a telescopic arm, allows inspection of the specimen behavior at the rear as well.
The interior lighting, via LED lights, is activated by a button on the control panel.
Specimen support for Vertical Burning (VB) test conforming to JAR 25 853 B standard.
Specimen support for Vertical Burning of Solid Plastics (VB) test conforming to UL 94 (tests V-0, V-1, V-2, 5VA, 5VB), ASTM D3801 and equivalent standards.
Specimen support for Vertical Burning of Non-rigid Solid Plastics (MVB) test conforming to UL 94 (tests VTM-0, VTM-1 and VTM- 2), ASTM D4804 and equivalent standards.
• Specimen support for Horizontal Burning (HB) test conforming to UL 94, ASTM D 635 and equivalent standards.
Specimen support for Horizontal Burning of Cellular Polymeric materials (HBF) test conforming to UL 94, ASTM D 4986 and equivalent.
Instrument configuration for performing flame resistance tests of conveyor belts in accordance with ISO 340 and ASTM D378.
The configuration includes:
- Specimen holder with dimensions to standard
- Blowing device with adjustable air flow
- Button for switching the blowing device on and off
The instrument, completeley made of Stainless Steel, is optimized for being placed on the table of your lab and for the connection to fume evacuation systems.
The instrument is totally developed and produced in the plant of Gibitre Instruments in Italy.
All the mechanical parts are produced in the company workshop using modern CNC machines.
Components and sensors from well-known brands are selected in order to ensure the maximum reliability in the measures
Internal trained personnel takes care of all the production stages: assembly, start-up, calibration, packing, shipment and installation.
