High-Temperature Oxygen Index Tester

Product description:

Our ISO 4589-3 High-Temperature Oxygen Index Tester is designed to evaluate the burning behavior of plastics and other materials under elevated temperatures up to 400°C, in compliance with ISO 4589-3:2017. Equipped with a precision quartz glass combustion tube, paramagnetic oxygen sensor, and advanced gas flow control, it accurately measures the minimum oxygen concentration (OI) or temperature (TI) required to sustain combustion. Ideal for testing self-supporting plastics, laminates, and porous materials, this instrument ensures reliable results for industries like rail, aerospace, and construction, meeting standards such as EN 45545-2.

Standard

ISO 4589-3 Plastic- Determination of burning behavior by Oxygen index
ISO 4589-3 Plastic- Determination of burning behavior by oxygen index Part 3 High temperature test
NES 715 Determination of the Temperature Index of Small Specimens of Material
NES 715 Determination of the burning behavior of plastics by oxygen index

Technical Parameters:

1. Oxygen concentration measurement range: 0-100%;
2. Oxygen concentration accuracy: ±0.1%;
3. Nitrogen mass flow controller range: 1.0-15.0L/min; accuracy 2%;
4. Oxygen mass flow controller range: 1.0-15.0L/min; accuracy 2%;
5. Sensor response time: <2s;
6. Equipment response time <10s (equipment response time includes the whole process from oxygen concentration setting, mass flow controller adjusting flow and fully mixing through mixing barrel, to combustion tube discharge.);
7. Flow meter range: 1.0-15.0L/min;
8. Airflow in combustion tube 40mm/s±2mm/s, concentration adjustment accuracy ±0.1%;
9. Airflow at the top of combustion tube 90mm±10mm/s;
10. Portable igniter, spray downward 16±4mm, adjustable;
11. Measuring time greater than 5min, accuracy ±0.5s;
12. Dual flow meter and pressure gauge device: accuracy ±1%;
13. Working pressure: 0.1Mpa;
14. Glass cylinder height 500mm, inner diameter 80mm.

Main features of the equipment:

1. Equipped with imported paramagnetic oxygen concentration sensor, no service life limit (unlike electrochemical sensors, the service life is only about 1 year)
2. Equipped with high temperature resistant quartz glass cylinder, outlet inner diameter 40mm, inner cylinder (inner diameter greater than 75mm, height greater than 450mm), outer cylinder (the gap with the inner cylinder is between 5mm~10mm, and the height is the same as the inner cylinder);
3. Equipped with self-supporting sample clamps and non-self-supporting sample clamps;
4. Equipped with nitrogen and oxygen mass flow controllers imported from Japan, accurately control the gas flow, with an accuracy of 0.01L/min (unlike float flowmeters that require manual adjustment of oxygen and nitrogen flow);
5. Patented gas flow mixing control unit, equipped with nitrogen and oxygen mass flow controllers, accurately controls gas flow;
6. After the oxygen concentration is set on the screen, the PLC LCD touch screen control system automatically adjusts the oxygen concentration according to the set value. Precise and convenient control;
7. Patented gas mixing chamber ensures more accurate oxygen concentration measurement and more complete mixing of oxygen and nitrogen;
8. Color LCD touch screen displays parameters such as flow, time and test results in real time;
9. Dual flow meter and pressure gauge device: accuracy ±1%;
10. Equipped with a special igniter, easy to operate.

Heating unit:

1. Heating unit power 1000W;
2. Test tube test temperature 25℃~400℃;
3. Heating unit is equipped with insulation protection;
4. Heating tube temperature accuracy: ±2℃ below 125℃, ±3℃ above 125℃ (according to standard requirements).

Control System:

1. PLC with touch screen test has a higher degree of automation;
2. After the oxygen concentration value is set, the system automatically adjusts the oxygen concentration;
3. Key electrical components are imported brands, accurate, reliable and durable;
4. The equipment is equipped with an automatic calibration system to prevent the oxygen sensor from drifting due to environmental influences and affecting the test results.
5. The one-button sensor automatic calibration system is convenient and quick, avoiding the trouble of customers needing to equip standard gas for regular calibration.
6. Equipped with safety protection circuit.

Since 2008, GOLD has developed 70 kinds of fire testing instruments and served many industries such as building materials, aviation, rails, IMO, wire & cable, safety protection, and so on.

Quality and Certification:
We always adhere to a strict quality control system, and all products comply with international standards (such as ISO, IEC, ASTM, etc.). We provide customers with technical support and maintenance services for equipment to ensure the long-term reliability and accuracy of the equipment.

Customer Support:
We provide customers with comprehensive technical support and services, including equipment operation training, technical consulting and after-sales service, to ensure that customers can make full use of the equipment and improve test efficiency and accuracy.

Vision and Mission:
Our vision is to become a leader in the field of global fire test equipment, and provide customers with the most reliable fire safety testing solutions through continuous innovation and high-quality services. Our mission is to help customers improve product safety performance, ensure the safety of personnel and property, and promote sustainable development of the industry.