What Is the Non-Combustibility Test?

The Non-Combustibility Test is a critical, standardized laboratory procedure used to determine whether homogeneous building products and the main components of non-homogeneous building products contribute directly to fire growth. By subjecting a test specimen to a high-temperature furnace (typically stabilized at 750 °C), the test evaluates flame occurrence, temperature rise inside the furnace and within the specimen, and mass loss to determine Euroclass (EN 13501-1 Reaction to Fire Classification) A1/A2 or GB 8624 Class A non-combustible performance ratings.

What Is the JBR20 Non-Combustibility Test Apparatus?

The JBR20 Non-Combustibility Test Apparatus is a high-precision, computer-controlled laboratory system engineered in strict compliance with ISO 1182:2020, IMO FTP Code Part 1, ASTM E2652, GB/T 5464-2026, and GB 8624-2025. Featuring an all-stainless-steel furnace body, dual-loop temperature/power control, and advanced software-driven data acquisition, the JBR20 delivers rapid heating, highly accurate temperature regulation, and automated test result calculations for strict product compliance and quality control.

Applicable Materials

The JBR20 Non-Combustibility Tester is designed for evaluating a wide range of building and construction materials, including:

• Homogeneous Building Products: Mineral wool, rock wool, glass wool, concrete, silicate boards, gypsum, mortar, and clay bricks.
• Components of Non-Homogeneous Products: Core layers, structural facings, and primary inorganic components of composite panels.
• Insulation Materials: High-density inorganic thermal insulation materials and fireproof boards.

Main Functions and Modules

• All-Stainless-Steel Heating Furnace: Constructed with a high-durability stainless steel body, standard furnace tube, and an integrated height-positioning block for rapid and accurate specimen holder placement.
• Advanced 4-Thermocouple System: Equipped with Class 1 accuracy thermocouples, including dual furnace-temperature thermocouples (compliant with ISO 1182:2020), 1 specimen-surface thermocouple, and 1 specimen-center thermocouple.
• Dual-Loop Temperature & Power Control: Features automatic switching from constant-temperature to constant-power mode without manual intervention, maintaining power fluctuations within 1% and empty-furnace temperature deviations within 2 °C.
• Automatic Power Compensation & Soft-Start: Advanced power-compensation technology dynamically adjusts heating power when voltage fluctuates, while the soft-start routine regulates furnace temperature in stages to extend heating core lifespan.
• Intelligent Software & Data Logging: High-frequency sampling software automatically detects flame duration, records furnace/specimen temperature curves, and logs results for seamless query and data export.

Technical Parameters

Important Notes

• Laboratory Environmental Control: The test room temperature must remain within 23 ± 5 °C during operation, with ambient temperature variation not exceeding 5 °C. The equipment must NOT be positioned near direct air outlets, HVAC vents, or strong radiation sources.
• Specimen Balance Requirement: Specimen mass loss determination requires an analytical balance with a readability of 0.01 g or better (supplied separately by the user).
• Continuous Testing Efficiency: The system allows multiple sets of specimens to be tested consecutively, significantly reducing reheating wait time between test runs.
• Continuous Gas Analyzer / Sensor Pre-heating: Thermocouples and control modules should be permitted adequate warm-up cycles to maintain Class 1 measurement compliance throughout high-throughput testing schedules.

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