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JF-3 Digital Oxygen Index Tester(Digital Display)
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Product Description
JF-3 digital oxygen index tester is developed according to the technical conditions specified in the national standards GB / t2406.1-2008, GB / t2406.2-2009, GB / T 2406, GB / T 5454, GB / T 10707, ASTM D2863, ISO 4589-2. It is mainly used to test the oxygen concentration (volume percentage) of polymer in the combustion process. The oxygen index of polymer is the volume percent concentration of the lowest oxygen in the mixture of oxygen and nitrogen which can be burned for 50 mm or maintained 3 minutes after ignition.
JF-3 digital oxygen index tester is simple in structure and easy to operate. It can be used as a means to identify the burning difficulty of polymer, and it can be also used as a related research tool, so as to provide a better understanding of polymer combustion process to people. It is suitable for testing the combustibility of plastics, rubber, fiber and foam materials. Because of its accuracy and reproducible, it is widely used.
Technical Parameter
1.Adopt the imported oxygen sensor, the digital oxygen concentration does not need to be calculated, the accuracy is higher and more accurate and the range is 0 ~ 100%.
2.Digital resolution: ± 0.1%
3.Measurement accuracy of overall unit: Grade 0.4
4.Flux-adjustment range: 0 ~ 10L/min（60-600L/h）
5.Response time: < 5S
6.Quartz glass cylinder: Inner diameter ≥ 75mm, 300mm in height
7.Gas flow in combustor: 40mm ± 2mm/s, total height of the combustor is 450mm
8.Pressure gauge accuracy: Grade 2.5 Resolution: 0.01MPa
9.Flowmeter: 1 ~ 15L/min（60 ~ 900L/H）adjustable, The accuracy is grade 2.5.
10.Test environment: ambient temperature: room temperature ~ 40℃; Relative humidity: ≤ 70%
11.Input pressure: 0.2 ~ 0.3MPa
12.Working pressure: nitrogen 0.05 ~ 0.15mpa oxygen 0.05 ~ 0.15mpa oxygen / nitrogen mixed gas inlet: including the pressure stabilizing valve, flow regulating valve, gas filter and mixing chamber.
13.The sample holder is suitable for soft and hard plastics, textiles, fireproof material, etc
14.Propane (butane) ignition system, flame length(5mm ~ 60mm) can be adjusted freely
15.Gas: industrial nitrogen, oxygen, purity > 99%; (users provided).
16.Power requirements: AC220(+10%)V,50HZ
17.Maximum service power: 50W
18.Igniter: it is made of a metal tube and a nozzle with inner diameter of Φ 2 ± 1mm at the end, which can be inserted into the combustor to ignite the sample. The flame length is 16 ± 4mm and the size is adjustable
19.Self supporting material sample clamp: it can be fixed on the axial position of combustor liner and can clamp the sample vertically
20.Non self supporting material sample clamp: it can fix two vertical sides of the sample to the frame at the same time.
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