Cone Calorimeter

The LS-ISO5660 Cone Calorimeter (also known as an Oxygen Consumption Calorimeter, Heat Release Rate Calorimeter, Building Material Combustion Calorimeter, Cone Heater Calorimeter, or Cone Heater Calorimeter) is a high-precision material combustion performance testing instrument developed by LISUN based on the “oxygen consumption principle” (13.1 MJ/kg ± 5%). It accurately measures key combustion parameters such as heat release rate, smoke production, and mass loss rate, providing scientific data support for material fire safety assessments. The modular design includes a standard gas analysis cabinet, a test control cabinet, a combustion test platform, and measurement modules. Its stable structure and easy operation meet the combustion performance testing needs of solid materials in various scenarios.

The LS-ISO5660 Oxygen Consumption Calorimeter is widely applicable to building materials, plastics, composite materials, and other fields. Whether optimizing flame retardant formulations during material R&D, assessing fire ratings during product certification, or performing quality verification by third-party testing agencies, its highly accurate test results help users control material combustion safety performance. Complying with multiple authoritative domestic and international standards, it is a core instrument in the field of material safety testing.

Standards:

Specifications:

Applications:
• Material R&D and Production: Optimizing the combustion performance of building and industrial materials such as plastics, rubber, foam, wood, and composite materials; verifying the effectiveness of flame-retardant formulations.
• Product Certification and Classification: Providing test data for material combustion performance classification (e.g., EN 13501-1) in accordance with standards like ISO 5660-1:2015, ASTM E 1354, ASTM E 1474, ASTM E 1740, ASTM F 1550, ASTM D 6113, NFPA 264, CAN ULC 135 and BS 476 Part 15.
• Quality Inspection and Acceptance: Used in third-party testing institutions and construction project acceptance processes to verify whether the actual combustion performance of materials meets design and standard requirements.
• Scientific Research and Teaching: Facilitating fire science research in universities and research institutes to analyze material combustion mechanisms; or serving as teaching equipment to demonstrate the principles of material combustion performance testing.

Test Procedures:
1. Test Preparation: Confirm the ambient temperature and humidity (23±2℃, 50±5% RH); check the smoothness of the exhaust system and the tightness of pipelines. Prepare standard gases such as nitrogen and methane; prepare specimens (3 parallel specimens per group) in the size of 100mm*100mm, and wrap them with 0.025-0.04mm aluminum foil (glossy side inward).
2. Equipment Calibration: Start the equipment. First, calibrate the gas analyzer (pass nitrogen for zeroing, and pass standard gas for high-point calibration). Then, complete the weighing calibration with 250g, 50g, 100g, and 200g weights. Finally, adjust the methane pressure to 0.15MPa and the air volume to 0.024±0.002m³/s, and complete the heat release rate calibration (a C value of 0.038-0.045 is qualified).
3. Specimen Installation and Test: Place the specimen holder (including refractory fiber layer) on the weighing platform and reset it to zero, then collect 1-minute baseline data. Insert the igniter, remove the radiation shield within 10 seconds, record the ignition time after igniting the specimen, and continuously monitor until the test is terminated (when one of the conditions such as continuous combustion for 32 minutes or no ignition for 30 minutes is met).
4. Data Processing: After the test, the software automatically calculates parameters such as average/peak heat release rate and mass loss rate, generates a test report with curve charts. Check the deviation of parallel specimens (the heat release rate deviation within 180s shall be ≤10%) to confirm data validity.