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Limiting Oxygen Index Tester

Limiting Oxygen Index Tester

Model :F701
Responsing Time:1 Working Days
Shipping Port:Shanghai
Payment Terms:T/T, L/C
  • Limiting Oxygen Index Tester
  • Limiting Oxygen Index Tester
  • Limiting Oxygen Index Tester


Limiting oxygen index tester is test apparatus to determine the burning behavior of textile, plastic, rubber and other materials with the help of the limiting oxygen index by calculating the minimum oxygen concentration that will just about support combustion of the sample in a mixture of oxygen and nitrogen. And the minimum oxygen concentration is referred to as the limiting oxygen index. Higher values of LOI indicate greater fire retardancy.
Limiting oxygen index tester


ISO 4589.2  GB/T 2406.2  GB/T 5454  GB/T 8924 GB/T 8624 GB/T 10707  ASTM D2863  NES 714


  • ​Digital display of nitrogen gas flow, total flow of oxygen and nitrogen, can preset the testing oxygen concentration.
  • ​Digital display of oxygen percentage in atmosphere during test (no calculations needed).
  • Paramagnetic oxygen sensor has more precise and stable performance.
  • Mini-adjustable valves for oxygen and nitrogen is easy to operate and all flowmeters are high precise.
  • ​Gas ignition device, easily adjust the length of the flame.
  • ​High temperature resistant quartz glass tube, can withstand a higher test temperature.
  • Sample holders for both rigid and flexible samples supplied.


Item Detail
Oxygen concentration range 0-100%
Oxygen concentration resolution ±0.1%
Pressure 0.05-0.3Mpa
Chimney Heat-resistant glass
Dimension of chimney Φ76mm×500mm
Gas velocity (40±2)mm/s
Response time <200ms
Stable time <5s
Power supply 220V 50Hz
Dimension 420 mm (W) x 350 mm (D) x 560 mm (H)
Net weight 9kg


No. Product
0670101 Limiting oxygen index test apparatus
0670102 Handheld burner
0670103 Chimney
0670104 Sample holder kit


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