BTH-JF-3 Oxygen Index Tester Technical Solution

I. Scope of Application
Flame retardancy testing for materials such as plastic, rubber, fiber, foam plastic, film, and sheeting, as well as textiles
II. Relevant Technical Parameters
Utilizing imported oxygen sensors, digital display of oxygen concentration requires no calculation, offering higher precision and accuracy.
Digital Resolution: ±0.1%
Overall Measurement Accuracy: 0.4 Grade
Flow Adjustment Range: 0-10 L/min (60-600 L/h)
Response Time: <5S
Quartz glass tube: Inner diameter ≥ 75mm, Height 480mm
Gas Flow Rate inside Combustion Tube: 40mm ± 2mm/s
Gauge accuracy: 2.5 class, resolution: 0.01 MPa
Flow meter: adjustable from 1-15L/min (60-900L/H), accuracy of 2.5 grade
Test Environment: Room temperature to 40°C; Relative humidity: ≤70%
Inlet Pressure: 0.2-0.3 MPa
Work Pressure: Nitrogen 0.05-0.15 Mpa, Oxygen 0.05-0.15 Mpa; Mixed Gas Inlet: Includes pressure regulator, flow control valve, gas filter, and mixing chamber.
Sample holder for soft and hard plastics, textiles, fire doors, etc.
Propane (Butane) Ignition System, flame length adjustable from 5mm to 60mm
Gases: Industrial nitrogen and oxygen, high purity; (Note: Gas source and connection heads are to be provided by the user).
Tips: During the test with an Oxygen Index测定仪, a bottle of industrial-grade oxygen/nitrogen with a purity of not less than 98% is required as the gas source. Since these gases are hazardous for transportation, they cannot be provided as accessories for the Oxygen Index测定仪 and must be purchased locally at a gas station. (Please purchase from a local, authorized gas station to ensure the purity of the gas.)
Power Requirements: AC220 (+10%) V, 50Hz
Maximum Power Rating: 50W
Igniter: Made of a metal tube with a nozzle at the end featuring an inner diameter of Φ2±1mm, capable of inserting into the combustion chamber to ignite the sample. Flame length: 16±4mm, adjustable in size.
Self-supporting material sample holder: Capable of being fixed at the center of the combustion tube axis and able to vertically clamp the sample
Non-supporting Material Specimen Clamp: Capable of simultaneously fixing both vertical edges of the specimen to the frame (optional for materials such as textile films)
Section 3: Applicable Standards
Design Standard: GB/T 2406.2-2009
Conforms to Standards: ASTM D 2863, ISO 4589-2, NES 714, GB/T 5454, GB/T 10707-2008, GB/T 8924-2005, GB/T 16581-1996, NB/SH/T 0815-2010, TB/T 2919-1998, IEC 61144-1992, ISO 15705-2002, ISO 4589-2-1996