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CTL20 - Flammable Range Test Apparatus

Determines lower and upper concentration limits of flammability of chemicals having sufficient vapour pressure to form flammable mixtures in air.

Benefits

  • Testing to ASTM 681 standard and for refrigerant gas flammability testing (12 litre test cell)
  • Enables the upper and lower limits of flammability to be determined
  • Bottom stirrer for uniform mixing
  • PTFE head assembly can be adapted to other test configurations

flammability range testflammable range test

Flammable Range (LFL/UFL) Apparatus

flammable range testflammable range test

The flammable range apparatus test method determines the lower and upper concentration limits of flammability of chemicals having sufficient vapour pressure to form flammable mixtures in air at one atmosphere pressure at test temperature. This method may be used to determine these limits in the presence of inert dilution gas. The apparatus is manufactured in accordance with ASTM E681- standard test method for Concentration Limits of Flammability of Chemicals.

Functional Specification & Deliverables

  • Flammable range fan assisted oven 220 - 240 V a.c typically 1.5 kW / 7 A (110-120 V a.c versions are possible)
  • Temperature rating 0 - 300 °C (test operating temperature limited to 150 °C due to the PTFE head assembly)
  • Safety glass window in door
  • Magnetic stirrer drive
  • New integral oven controller including pressure reader, temperature reader and oven controller. Also includes stirrer controller and arc controller ignition source and activation handset
  • 1ml, 3 ml, 5 ml and 10 ml disposable syringe sets supplied to get you started
  • 500 µl syringe with needle
  • 5 litre glass test vessel
  • 1 x vacuum pump + 6mm inlet line & exhaust hose
  • Vacuum pump inlet filters, plastic-coated magnetic stirring bars
  • 1 x remote handset for constant arc activation
  • 2 x 5 litre covers /head assemblies with ports for sample injection, electrodes, thermocouple, vacuum / exhaust line(s) with needle valve isolation and transducer connection (complete with cover clamps)
  • 1 x pressure transducer -1 to 1 barg
  • 1 set x 5 litre head rubber seal gaskets
  • 1 set x septums for injection line connection
  • 1 x length of tungsten constant arc electrode wire
  • 1 x T-Piece fitting
  • 1 x 5 litre vessel support stand
  • 1 x 5 litre vessel stirrer extension rod
  • 2 x mains supply leads
  • Comprehensive English instruction manual complete with pressure and temperature calibration and monitor manuals

Optional Extras

Note: if the sample quantity available is not limited, then a 12 litre system can be ordered rather than the 5 litre system. A 12 litre system also permits the user to test lower anf upper limits of refridgerant samples. Where the sample quantity availability is limited, then a 5 litre system is normally preferable to the customer.

The following is available at an additional cost:

  • Spare transducers – pressure and thermocouples
  • Spare tungsten wire, valves / tubing and vessels
  • Spare 5 litre or 12 litre covers / head assemblies with ports for sample injection electrodes, thermocouple, vacuum / exhaust line(s) with needle valve isolation and pressure transducer connection (complete with cover clamps)
  • 1 x 12 litre vessel support stand
  • 1 set x 12 litre head rubber seal gaskets
  • 1 x 12 litre vessel stirrer extension rod
  • Training