Oxygen Index

What It's For
he Oxygen Index is, perhaps, the most economical and precise quality control test of combustible materials. Its ease of use together with high levels of precision has made this technique a primary characterising and quality control tool to the plastic and electric cable industries and it has been specified by several military and transport groups. The technique measures the minimum percentage of oxygen in the test atmosphere that is required to marginally support combustion. Note that BS ISO 4589 supersedes BS 2782 Part 141.
  • New Paramagnetic Oxygen Cell for assessing accurate oxygen (< 0.1%) levels
  • Compact unit for efficient use inside a laboratory hood, with ventilation
  • Automatic flow control gives oxygen level adjustment by turning one single valve
  • Quick loading of test specimen into test chimney measuring 450 mm × 75 mm
  • Digital display of oxygen percentage in atmosphere during test (no calculations needed)
  • Digital display of temperature of gas mixture entering the test chimney
  • Sample holders for both rigid and flexible samples supplied
  • Shortened gas path for rapid response
  • Digital readout for oxygen concentration: +/- 0.1%
  • Dimensions (mm): 350 (W) × 370 (D) x 280 (H)
  • Column size (mm): 75 & 95 (dia) × 450 (H)
  • Weight: 14 kg
  • Voltage: 230V 50Hz 1A or 110V 60Hz 2A
  • Operating Manual: Supplied
  • Other Service requirements: Bottled O2/N2, Propane

Temperature Oxygen Index Apparatus

What It's For
The Temperature Oxygen Index module (TOI) must be used with either the new FTT Oxygen Index apparatus or with any traditional design, to determine the oxygen index at temperatures up to 125°C. Research shows that the elevated temperature at which the materials will burn in air is a better determinant of combustibility than is the conventional oxygen index. Oxygen Index values fall when the gas temperatures are increased. The FTT apparatus enables temperature oxygen index to be determined in accordance with ISO 4589 Part 3 or the UK Naval Engineering Standard NES 715. Elevated test temperatures are set by adjustment of the pre-heated gas temperature levels and setting the heated glass furnace wall temperatures. The temperatures of both heated sections are continuously displayed on the Temperature Index control unit. When experiments are being carried out using different oxygen levels, gas conservation is achieved by using air from an integral quiet running pump between tests. Bottled nitrogen and oxygen supplies are only switched into the system for testing.
  • Test temperature to 400°C
  • Digital display of sample temperature
  • Digital display of column and pre-heater temperatures
  • Transparent radiant heated test column
  • Highly efficient gas pre-heater
  • Air pump to conserve oxygen and nitrogen supply during standby period
  • Digital readout for oxygen concentration: +/-0.1%
  • Dimensions (mm): 350 (W) × 370 (D) × 280 (H)
  • Column size (mm): 160 max (dia.) × 75mm (internal dia.) × 570 (H)
  • Weight: 17 kg
  • Voltage: 230V 50Hz 10.25A or 110V 60Hz 20.5A
  • Operating Manual: Supplied
  • Other Service requirements: Bottled O2/N2, Propane, Requires Oxygen Index

Horizontal/Vertical Flame Chamber

What's for
The FTT UL 94 Chamber tests are conducted on plastic materials to measure flammability characteristics, giving a preliminary indication of their suitability for a particular application. The apparatus is supplied as a complete system incorporating all the features necessary for ease of use and safety.
It also conforms to all five UL 94 horizontal and vertical burner tests and associated ASTM international standards. These are:

  • Horizontal Burning Test; UL 94HB (ASTM D635, IEC 60695-11-10, IEC 60707, ISO 1210).
  • Vertical Burning Test: UL 94 V-0, V-1, or V-2 (ASTM D3801, IEC 60695-11-10, IEC 60707, ISO 1210).
  • 500 W (125mm) Vertical Burning Test: 5VA or 5VB (ASTM D5048, IEC 60695-11-20, IEC 60707, ISO 9772).
  • Thin Material Vertical Burning Test: VTM-0, VTM-1, or VTM-2 (ASTM D4804, ISO 9773).
  • Horizontal Burning Foamed Material Test: HF-1, HF-2 or HBF (ASTM D4986, ISO 9772).
  • Burners (ASTM D5025, ASTM D5207, ISO 10093, ISO 103351)
The NFPA 269
  • A bench mounted draft free combustion chamber with a large inside volume of 1.0m³ and fitted with an interior light and exhaust fan to enable simple evacuation of combustion products.
  • Large door and window made from toughened safety glass giving a generous view of the specimen during a test. A specimen light is also fitted.
  • Specimen holders.
  • Fully adjustable horizontal and vertical specimen supports.
  • A burner in compliance with ASTM D5025, with simple angle adjustment (0°, 20°, 45°) and precision gas control system including gas flow meter, pressure regulator and pressure gauge (Two access ports enabling easy entry to the chamber for movement of the burner and specimen).
  • A burner wing tip.
  • Three digital test duration timers for accurate but simplified operation with remote handset.

Vertical/Horizontal Wire Flame Test Apparatus

What's for
The UL 1581 is an internationally recognised standard test for evaluating fire safety for electric cables. The FTT UL 1581 test for flammability of cable materials gives a preliminary indication of their suitability for a particular application. The apparatus is supplied as a complete system incorporating all the features necessary for ease of use and safety.

It conforms to UL 1581 vertical specimen Bunsen Burner tests and associated international standards. These are:

  • 1060. Vertical Flame and FT1 Tests
  • 1061. Cable Flame Test
  • 1080. VW-1 (Vertical Specimen) Flame Test
  • 1090. Horizontal-Specimen Appliance-Wire Flame Test
  • 1100. Horizontal-Specimen / FT2 Flame Test

Ignitability Apparatus

What's for

The test apparatus consists of a support framework which clamps the test specimen horizontally between a pressing plate such that a defined area of the upper surface of the specimen is exposed to radiation.

This radiation is provided by a radiator cone positioned above and supported from the specimen support framework. An automated pilot flame application mechanism is used to bring a test flame through the radiator cone to a position above the centre of the surface of the specimen. A specimen insertion and location tray is used to position the specimen accurately on the pressing plate of the specimen support framework and a screening plate is used to shield the surface of the specimen during its insertion into the apparatus.

  • Framework for the cone sample support mechanism
  • Radiator cone assembly
  • Radiation levels between 10-50kW/m² using a conical radiation furnace.
  • Counter weight for pressing plate
  • Pilot gas line with flashback arrestor and provision for re-ignition
  • Pilot flame application mechanism and motor drive assembly to bring pilot flame into the correct position above the plane of sample, every 4 seconds
  • Secondary ignition source

Single-Flame Source Test

What's For
The Single Flame Source Test” is built in accordance with “ISO 11925-2: Reaction to fire tests for building products – Part 2: Ignitability when subjected to direct impingement of flame”. The apparatus is based on the German Kleinbrenner method for determining ignitability of building products in the vertical orientation by direct small flame impingement under zero impressed irradiance.
  • An extensively adjustable burner assembly, mounted on runners, to enable the small premixed flame to be tilted at an angle of 45° to the specimen and offered to it in one fluid movement
  • Specimen holder capable of housing the specimens up to and including 60 mm thick
  • A fully adjustable specimen support frame facilitating lateral movement of the specimen holder so that the flame can be applied either at the specimen centre position, or at laterally spaced points.
  • A digital anemometer/thermometer and a stopwatch for simple but accurate measurement of the flow, temperature and time.


What's For
Manufactured according to the Federal Motor Vehicle Safety Standard No. 302. ISO 3795 is a technically equivalent standard used in Europe, Canada, and Japan; while ASTM D5132-04 is used in USA. The FMVSS 302 specifies the burn resistance requirements for materials used in the occupant compartments of motor vehicles (i.e. passenger cars, multipurpose passenger vehicles, trucks and buses). This is to reduce the deaths and injuries to motor vehicle occupants caused by vehicle fires, especially those originating in the interior of a vehicle from sources such as matches or cigarettes.
  • Fully compliant to FMVSS 302 and ISO 3795 requirements depending on which sample holder is used. 
  • Complete and ready to use system.
  • Low maintenance requirement.
  • FMVSS 302
  • ISO 3795
  • ASTM D5132-04

FAR Bunsen Burner Test Apparatus

What's For
The FTT Federal Aviation Bunsen Burner Test Apparatus conforms to the fire test methods described in FAA Aircraft Material Fire Test Handbook for aircraft materials. The apparatus is supplied as a complete system incorporating all the features necessary for ease of use and safety.

It enables the user to test according to five Federal Aviation Regulation (FAR) test methods:

  • Vertical Bunsen burner test for cabin and cargo compartment materials
  • 45-Degree Bunsen burner test for cargo compartment liners and waste stowage compartment materials
  • Horizontal Bunsen burner test for cabin, cargo compartment, and miscellaneous materials
  • 60-Degree Bunsen burner test for electric wire
  • Recommended procedure for the 4-ply horizontal flammability test for aircraft blankets.

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