JF-3 Digital Oxygen Index Tester

summary

JF-3 oxygen index tester is a new type of product developed according to the technical requirements specified in the national standard GB/T2406. 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 maintain the combustion pattern in a mixture of oxygen and nitrogen for a duration of 50mm or 180s after ignition of the substance.

 

This instrument can not only be used as a means to identify the flame retardancy of polymers, but also as a research tool, providing a powerful testing tool for laboratory research on flame retardant formulations and the development of new flame retardant materials. It is suitable for the flammability test of solid materials, laminated materials, foamed plastics, fabrics, films and films.

The instrument has a reasonable structural design and is easy to operate, use, and maintain. The testing system uses imported oxygen sensors and displays the results digitally. With the advantages of accurate judgment and good reproducibility, it is an ideal testing equipment for scientific research and production quality control.

 

Main technical parameters

 

Features: Adopting imported oxygen sensors, the digital display of oxygen concentration does not require calculation, resulting in higher and more accurate accuracy, with a range of 0-100%

Digital resolution ± 0.1%

Measurement accuracy level 0.4

Flow regulation range 0-10L/min (60-600L/h)

Response time<5S

Inner diameter of combustion cylinder ≥ 75mm, height 400mm

Gas flow rate inside the combustion cylinder 40mm ± 10mm/s

Pressure gauge accuracy level 2.5

Resolution of 0.01MPa

Flow meter 1-15L/min (60-900L/H) adjustable

The inlet of the oxygen/nitrogen mixed gas includes a stabilizing valve, a flow regulating valve, a gas filter, and a mixing chamber

The sample holder can be used for soft and hard plastics, textiles, fire doors, etc

Propane (butane) ignition system flame length 5mm-60mm can be freely adjusted

Nitrogen and oxygen for gas industry, with a purity greater than 99%; (User provided)

The igniter is made of a metal tube with an inner diameter at the tail end Φ A nozzle with a diameter of 2 ± 1mm can be inserted into the combustion cylinder to ignite the sample. The flame length is 16 ± 4mm and the size is adjustable

The self-supporting material specimen clamp can be fixed on the axial position of the combustion cylinder and can vertically clamp the specimen

Non self-supporting material specimen clamps can simultaneously fix the two vertical edges of the specimen to the frame