LFY-605B High-temperature oxygen index tester

Major uses

Suitable for inspection and evaluation of homogeneous solid materials, laminated materials, foam materials, film and film materials widely used in various fields, such as plastics, textiles, electronic equipment, etc. , to ensure the safety and reliability of products. The flammability of materials under specified test conditions, but the results can not be used to assess the fire hazard of materials under actual service conditions.

Test method for minimum oxygen concentration required to maintain the combustion of small, upright specimens in a mixed flow of oxygen and nitrogen in the temperature range 25 °C-150 °C (typically 40 °C-150 °C) under specified test conditions. The result is defined as the temperature exponent at the test temperature, which is the typical temperature that the plastic material may be at under actual superheating conditions. The method also covers the testing of flexible sheets or films and defines the flammability temperature (FT) , i.e. , the temperature at which the oxygen index is 20.9% , suitable for determinations below 400°C.

Technical specifications

Ignition device: DC Motor Drive, easy to operate, and can be controlled automatically

Igniter: ignition tube diameter: Φ2 ± 1 mm, flame length: 16 ± 1 mm

Timer: 999.00 s ± 0.01 s

Test space: ≥0.5 m3, background black

Flow adjustment range: 1-10l/min (manual adjustment)

Input Pressure: 0.25-0.5 Mpa

Working Pressure: 0.1-0.2 Mpa (manual adjustment)

Regulator accuracy: ≤0.001 Mpa/min

Response time: < 5s

Measurement Range: 0-100%/O2

Digital resolution: ± 0.1%

Temperature Sensor: K-type Φ1.5 mm insulated armoured couple, test temperature 400 °C

Oxygen sensor: chemical formula

Dimensions: width 1120mm × depth 520mm × height 1250mm, vent φ100mm;

Test power supply: 220V ± 10,1.2 kva

Maximum temperature for testing: 150 °C or 400 °C

User-owned: oxygen 1 tank (pressure gauge) , nitrogen 1 tank (pressure gauge) , propane gas 1 tank

Configuration list

1 set of instructions

1 oxygen index meter

1 flame height gauge

1 tracheal clamp

1 burning glass tube

1 set of sample holder

4 chassis feet

1 exhaust pipe

1 power cord

Applicable standards

GB/t 2406.3“Determination of combustion behaviour of plastics by oxygen index method” Part 3

Iso 4589-3 determination of flammability by oxygen index (high temperature test)