Chinese standards:
GB/T554-1997 "Test for Burning Performance of Textiles - Oxygen Index Method"
GB/T2406.2-2009 "Test method for combustion performance of plastics - Oxygen index method"
Japanese standard: K72021-2-2007
British Standard: BS2782
American standard: ANSI/ASTM D2863-2000
National standard: ISO4589:2017
1.Oxygen concentration (oxygen index) sensor: imported from the UK;
2.Gas supply pipeline: flow meter, pressure gauge, and needle valve;
3.Two pressure gauges provide oxygen output pressure and nitrogen output pressure respectively, and the pressure can be adjusted by adjusting the valve;
4.Measurement range: 0~100%/O2, resolution: 0.1% L/mi
5.Measurement accuracy: Level 2.5;
6.Combustion tube quartz glass tube, inner diameter: 75mm, height: 450mm;
7.Gas flow velocity at the top of the combustion cylinder: 90mm ± 10mm/s;
8.Gas flow velocity inside the combustion cylinder: 40mm ± 2mm/s;
9.Input pressure: adjustable from 0.25 to 0.5 Mpa;
10.Rotary flowmeter: mixed gas (can display oxygen or nitrogen separately), range 2.5-25L/min, resolution: 0.5L/min;
11.Oxygen and nitrogen mixed gas inlet: including stabilizing valve, flow regulating valve, and mixing chamber;
12.Igniter: Special propane handheld electronic firearm. Using copper pipes with a diameter of 2.0mm, the flame can be adjusted to 13.spray 16mm ± 4mm vertically downwards from the outlet;
14.Timer accuracy: ± 0.1/s/h;
15.Glass beads: diameter 4.5mm, filling height 95mm;
16.Sample clamp: one set of hard self-supporting material and one set of soft material clamps;
17.Gas source: Oxygen and nitrogen with a purity of over 98% (to be provided by the purchaser);
18.Power requirement: AC220 (± 10%) V/50HZ;
19.Dimensions: L630 * W350 * H655 (unit: mm);
20.Electric control system:
21.Adopting a relay control system, all electronic components are from leading domestic and foreign brands, which can better ensure the performance and detection accuracy of the machine;
22.The equipment has the following safety protection devices: power overload, short circuit protection, and control circuit overload protection
Scope of application
It is applicable to the determination of combustion performance of plastics, rubber, fiber, foam plastics, film, film, textile, wood and other materials.