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TST‑C1074 Limiting Oxygen Index Tester（LOI Tester）

　　The oxygen index tester complies with the national standard GB/T 2406. It is an instrument used to determine the oxygen concentration (volume percentage) required for polymers during combustion.

The oxygen index value of a polymer refers to the minimum volume percentage of oxygen in an oxygen nitrogen mixture that enables the material to sustain combustion for 50 mm burning length or 3 minute burning time after ignition.

Principle Standards Specs Features Video

Working Principle

　　This instrument features simple structure and easy operation. It can serve as a means to identify the combustion performance of polymers, as well as a relevant research tool for better understanding the combustion process of polymers.

Suitable for testing the combustion performance of plastics, rubber, foams and other materials, the tester delivers accurate measurement results with good reproducibility. It is an essential testing instrument for the research and production of flame retardant materials.

Applicable Standards

　　The instrument is designed in accordance with the relevant requirements of GB/T 2406.

Instrument Specifications

Item	Specification
Inner Diameter of Combustion Chimney	100mm
Height of Combustion Chimney	450mm
Flowmeter Accuracy	Class 2.5
Pressure Gauge Accuracy	Class 2.5
Pressure Gauge Resolution	0.01 MPa
Oxygen Concentration Indicator Resolution	0.1%
Gas Source	Purity of oxygen and nitrogen shall be no less than 98 % as specified in GB/T 2406
Test Environment	Temperature: 10‑35 ℃, Humidity: 45‑75 %
Input Pressure	0.2-0.3MPa
Working Pressure	0.05-0.15MPa
Specimen Type	Self‑supporting materials and non‑self‑supporting materials
Power Supply	220V，AC，50Hz

Instrument Features

Video Display

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