Working Pressure: Nitrogen 0.05-0.15Mpa, Oxygen 0.05-0.15Mpa. Oxygen/Nitrogen Mixed Gas Inlet: Includes pressure stabilizing valve, flow regulating valve, gas filter, and mixing chamber.
Response Time: <5S
Relevant Technical Parameters
Flow Regulation Range: 0-10L/min (60-600L/h)
Uses imported oxygen sensor, digital display of oxygen concentration without calculation, higher precision and accuracy, range 0—100%
Digital Resolution: ±0.1%
Propane (Butane) Ignition System, flame length 5mm-60mm freely adjustable
Non-self-supporting material sample clamp: Can fix both vertical edges of the sample on the frame simultaneously (Optional, suitable for textiles, films, and other materials)
This is a new model product developed according to the technical requirements specified in the GJ standard GB/T2406-93. This instrument is used to determine the volume percentage of oxygen required during the combustion process of polymers. The polymer oxygen index value is the minimum oxygen concentration (also known as the oxygen index) required to just sustain sample combustion in an oxygen-nitrogen mixed gas flow when the material is ignited and maintains a combustion length of 50mm or a combustion time of 180s.
Quartz Glass Cylinder: Inner diameter ≥75 mm, Height 480mm
Sample clamp can be used for soft and hard plastics, textiles, fire doors, etc.
Overall Dimensions: 650mm×400×830mm
Self-supporting material sample clamp: Can be fixed at the axis position of the combustion cylinder and vertically clamp the sample
Gas Flow Velocity in Combustion Cylinder: 40mm±2mm/s
Suitable for flammability testing of solid materials, laminated materials, foam plastics, fabrics, soft sheets, films, and other materials.
Igniter: Made of a metal tube, with a nozzle at the end with an inner diameter of Φ2±1mm, can be inserted into the combustion cylinder to ignite the sample, flame length: 16±4mm, adjustable size
Flow Meter: 1-15L/min (60-900L/H) adjustable, accuracy 2.5 grade
Input Pressure: 0.2-0.3MPa
Suitable for determining the combustion performance of materials such as plastics, rubber, fibers, foam plastics, soft sheets, films, and textiles.
Gases: Industrial nitrogen and oxygen, purity >99%; (Note: Gas sources and connectors are to be provided by the user). Tips: During testing with the oxygen index tester, one cylinder each of industrial-grade oxygen and nitrogen with not less than 98% purity is required as the gas source. Since the above gases are high-risk transport items, they cannot be provided as accessories for the oxygen index tester and must be purchased from local gas stations. (To ensure gas purity, please purchase from正規(guī) local gas stations)
Test Environment: Ambient temperature: Room temperature ~40℃; Relative humidity: ≤70%;
Maximum Power Consumption: 50W
Pressure Gauge Accuracy 2.5 grade, Resolution: 0.01MPa
Power Requirements: AC220（+10% ）V, 50HZ
This instrument can not only serve as a means to identify the flame retardancy of polymers but also as a research tool, providing powerful testing means for laboratory research on flame retardant formulations and the development of new flame retardant materials.
Scope of Application
Overall Measurement Accuracy: 0.4 grade