The ISO 5659 NBS Smoke Density Chamber is a precision testing instrument designed to evaluate smoke density levels generated by various materials during combustion. This advanced flammability tester provides accurate optical density measurements for plastics, rail transit materials, marine non-metallic materials, and wire and cable products.

• ASTM E662: Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials
• ISO 5659-2: Plastics-Smoke Generation - Part 2: Determination of optical density by a single-chamber test
• NES 711: Determination of the Smoke Index of Products of combustion from Small Specimens of Material

• Complete test chamber with sample holder, radiation cone, igniter, and optical measurement system
• Ergonomic full-door design with easy-to-operate door locks
• Fully opening front door for convenient sample loading and chamber cleaning
• Hinged front door with observation window and movable opaque shading plate
• Side-mounted controller accessible even when door is closed
• Replaceable safety flameout board for enhanced operational safety
• Optional gas measurement port for toxicity testing applications
• Chemical-resistant, easy-to-clean coating on all interior surfaces

• Heating cone: 2600W power, temperature range 0-1000°C, stability ±2°C within 50 minutes
• Irradiance capability: 10KW/m² to 50KW/m²
• Mass flow controller and differential pressure sensor for precise pressure measurement
• Automatic ignition system with 30mm±5mm flame length
• Standard-compliant blue flame with yellow tip

• Digital display of smoke density and temperature for accurate readings
• Advanced photoelectric detection with photomultiplier tubes and optical filters
• 6.5V incandescent light source with side-window photomultiplier
• Transmittance accuracy: 0.001%
• High-gain low-noise amplifier control circuit for precise signal processing

• Fully automated test execution with automatic signal collection
• Brand computer system integration
• Optional printer for test documentation
• Operating voltage: 220V, Power consumption: 4KW
• Customer-supplied propane gas for combustion testing