High Accuracy LOI Tester for PVC Materials - 90mm Combustion Tube, 0.1% Oxygen Resolution ISO 4589-2 Compliant
Price:
USD 2000-6000
MOQ:
1 set
Delivery Time:
20 working days
Brand:
GOLD
Product Description
High Accuracy LOI Tester for PVC Materials
The Limiting Oxygen Index (LOI) Tester measures the minimum oxygen concentration required for material combustion in oxygen-nitrogen mixed gas flow. This critical parameter evaluates material fire resistance, with higher LOI values indicating better flame retardancy. Materials above 27% are considered difficult to burn, while those below 20% are classified as flammable.
Testing Principle & Methodology
- Principle: Determines minimum oxygen concentration needed to sustain material combustion under controlled conditions
- Method: Uses precisely controlled oxygen-nitrogen gas mixtures to measure combustion sustainability
- Standards: Compliant with ISO 4589-2 (room temperature) and ISO 4589-3 (high temperature) specifications
Technical Specifications
- Combustion tube: 90mm inner diameter × 450mm height
- Igniter rod tip diameter: φ2±1mm
- Flow meter range: 160-1600L/H adjustable
- Pressure gauge: 2.5 accuracy class, 0.01MPa resolution
- Oxygen concentration resolution: 0.1%
- Oxygen sensor: High-precision German import
- Input pressure: 0.2-0.3MPa
- Working pressure: 0.05-0.15MPa
- Test environment: 10-35°C temperature, 45-75% humidity
- Sample compatibility: Self-supporting and non-self-supporting materials
Physical Specifications
| Component | Dimensions |
|---|---|
| Control Box | 460mm(L) × 420mm(W) × 760mm(H) |
| Combustion Tube Base | 250mm × 250mm × 550mm |
| Power Supply | AC220V, 50/60Hz, DC 1A |
| Gas Source | Oxygen & Nitrogen (customer provided) |
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Company
Chongqing gold mechnical and electrical equipment Co., Ltd
Location
25F, China Resources Building, Xiejiawan, Jiulongpo District,Chongqing,400050,China
Contact Person
Ivy Zhang