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High Temperature Oxygen Index Test Apparatus ISO 4589-3

Model: HTYZS-100E

High Temperature Extreme Oxygen Index Tester - Critical value of oxygen demand concentration during material combustion. High-temperature limit oxygen index tester refers to the volume fraction concentration of oxygen that can support the combustion of materials in a mixture of oxygen and nitrogen gas, and is an index that characterizes the combustion behavior of materials.  With the increasing demand for material properties and the wider range of material applications, the testing conditions for the ease of material combustion have become more stringent.  The high temperature limit oxygen index tester is mainly used to test the ease of combustion of materials under high temperature conditions, and to control product quality by testing the combustion performance of materials.


General introduction

High Temperature Extreme Oxygen Index Tester - Critical value of oxygen demand concentration during material combustion. High-temperature limit oxygen index tester refers to the volume fraction concentration of oxygen that can support the combustion of materials in a mixture of oxygen and nitrogen gas, and is an index that characterizes the combustion behavior of materials.  With the increasing demand for material properties and the wider range of material applications, the testing conditions for the ease of material combustion have become more stringent.  The high temperature limit oxygen index tester is mainly used to test the ease of combustion of materials under high temperature conditions, and to control product quality by testing the combustion performance of materials.

Main Features

  • Key feature
  • Standard
  • Key parts

1, Reasonable structure, easy to operate, consist by main control box and burning tube.

2, High temperature limiting oxygen index tester is used to measure the limiting oxygen index of solid materials such as textiles, plastics, laminated materials, foam materials, films and films under various conditions beyond normal temperature, which can be used to evaluate the combustion performance of materials under specified conditions, so as to guide material research and development, provide data basis for product acceptance, and provide data basis for new material research and development, product quality acceptance, etc. 

3, The sample is vertically fixed in a transparent heating test cylinder with an upward flowing oxygen and nitrogen mixture gas. The top of the sample is ignited, and the combustion characteristics of the sample are observed. The continuous combustion time or combustion length of the sample is compared with the given limit value. Through a series of experiments at different oxygen concentrations, the minimum oxygen depth value expressed as the percentage of oxygen content during combustion is measured.

ISO 4589.3 Determination of Combustion Behavior of Plastics by Oxygen Index Method - High Temperature Test NES 715 Small Sample Material Oxygen Index Determination -High temperature testing can also be used for room temperature testing;

GB/T 2406.2 Determination of Combustion Behavior of Plastics by Oxygen Index Method;

ISO 4589.2 Determination of Combustion Behavior of Plastics by Oxygen Index Method;

GB/T 5454-1997 Textiles Combustion Performance Test Oxygen Index Method;

ASTM D2863 Plastic Oxygen Index Test Standard Determination of Oxygen Index of NES 714 Small Sample Material;

GB/T 10707 Rubber Determination of Combustion Properties Oxygen Index Method;


1, Imported sensors

Imported high-precision paramagnetic oxygen concentration sensor with high accuracy and stable performance.  Real time detection of oxygen concentration, combined with PLC precise control to adjust the oxygen concentration passing through the airflow.


2, Flexible fixture design

The fixture is made of fire-resistant and stainless materials that can withstand high temperatures without rusting, and can hold various samples.  By replacing the sample clamp, different characteristics of the sample requirements can be met.


3, 7-inch color screen, intelligent touch, multi-point touch operating system, convenient control, multilingual display, switching between Chinese and English.  Simplified operating interface and easy to operate.


4, Quick change structural design

The test tube of the instrument is made of high temperature resistant to transparent glass, and has heating function to improve various high-temperature conditions for the experiment. In addition, the test tube is combined with the base in a quick change design, which allows clear observation of the combustion situation during the test. It is also easy to clean after the experiment. The stainless steel base can avoid various corrosion effects on the test data and has a long service life.


Main technical specification

Panel operationfull-color touch screen control
Gas supply pressure≤ 1MPa
LanguageEnglish / Chinese operating interface
Test air pressure0.15-0.2MPa
Test cylinder

Heat-resistant high borosilicate, inner cylinder diameter ≥ 75mm;

 Height ≥ 550mm, inner and outer cylinder gap 5-10mm

Test gas flow rate12.1L/min
Test temperature rangeRoom temperature -200 ℃
Stainless steel beadΦ 4mm, height 80-100mm
Response time10 seconds
Inner diameter of ignition gun2mm
Heating power of test tube1000W
Fire gun length400mm
Exterior dimensions700mm * 430 mm * 770 mm
Air inlet7mm
Weight55kg
Oxygen concentration control range0~100%, ± 0.2%
Power220V, 50Hz, single phase


Main Accessories

ItemQuantity
Frame1   set
Oxygen sensor1   pc
Burning tube1 set
Sample clip2 pcs
Tube clip1   pc
Sample install clip1   pc
SS Steel ball1   bags
Documents (Manual, packing list, certificate)


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