Description
Specifications
- Model: OIT-351
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Standards: ASTM D2863, IS 10810 (Part 58, Part 64)
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Parameters Measured: Oxygen Index (OI), Temperature Index (TI)
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Sample Orientation: Vertical burning test
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OI Measurement Range: Measures minimum oxygen % required for sustained burning
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TI Measurement Condition: At 21% oxygen (atmospheric air)
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Analyser Type: Indian analyser supplied; paramagnetic analyser optional
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Sensor Life (Indian): Approx. 2 years (replacement recommended every 1.5 years)
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Sensor Life (Paramagnetic): 15+ years
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Sample Loading: Easy-load vertical sample holder
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Display: Direct digital readout of critical oxygen index
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Ignition System: Simplified burner with precision control
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Gas Requirement: Oxygen & Nitrogen cylinders with regulators (not included)
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Application: Flammability assessment of polymers, cables, plastic materials, insulation, etc.
Oxygen Index / Temperature Index Test Equipment OIT-351 – Precision Flammability Measurement
The OIT-351 Oxygen Index / Temperature Index Test Equipment is a highly accurate system designed to evaluate the flammability and combustion resistance of materials under controlled atmospheric conditions. It determines:
• Oxygen Index (OI)
The minimum oxygen concentration at which a vertically held material stops burning within 3 minutes.
• Temperature Index (TI)
The temperature at which the material ceases to burn in normal atmospheric air (21% oxygen) within 3 minutes.
Compliant with ASTM D2863 and IS 10810 test methods, this instrument provides a reliable means of assessing material safety, especially for applications involving cables, polymers, plastics, insulation materials, and engineering components.
The equipment features easy sample loading, a simplified ignition system, and a direct digital readout, reducing operator dependency and eliminating manual calculations. The supplied Indian analyser ensures accurate oxygen concentration measurement, and for long-term performance, an optional paramagnetic analyser can be used for extended sensor life (over 15 years).
Key Features
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Accurate OI and TI testing as per global standards
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Direct digital display for precise oxygen index values
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Vertical sample clamp for consistent combustion testing
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Reduced operator error with automated calculation and readout
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Optional long-life paramagnetic analyser
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Ideal for cable manufacturers, polymer labs, R&D units, and QC departments
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High sensitivity for evaluating flame resistance and ignition behavior
Important Notes
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Oxygen and Nitrogen cylinders with regulators are not included.
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Indian sensors have a limited lifespan (approx. 2 years).
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For enhanced durability and reduced maintenance, a paramagnetic analyser is recommended.



