ISO 5659 ASTM E662 Plastic Flammability Smoke Density Tester NBS Smoke Chamber Optical Density Fire Testing Equipment

The Plastic Combustion Smoke Density Tester is a sophisticated testing equipment developed in accordance with GB/T 8323.2-2008 national standards. This instrument determines the specific optical density of smoke produced during plastic combustion, using maximum specific optical density as the test result to evaluate smoke emission performance under specified conditions.

The complete system includes a closed test chamber, photometric measurement system, radiation cone, combustion system, igniter, specimen holder, support frame, temperature measuring instrument, and specialized smoke density testing software. Developed with microcontroller technology, the instrument offers high technical content and stable performance.

Suitable for all plastics and other materials including rubber, textile coverings, painted surfaces, wood, and various solid materials. Widely used by production facilities and scientific research institutions in the plastics and materials industries.

• Computer automatically records specific optical density based on light intensity changes
• Optical filters: magnifying filter (optical density 2.0), calibration filter (optical density 3.0), compensating filter (optical density 0.5)
• Lower window ring heater maintains optical window temperature at 50°C - 55°C to minimize smoke deposition
• Heating cone: 2600W power, temperature control range 0-1000°C with thermocouple measurement and automatic cold junction compensation
• Heat flux radiometer with water cooling circuit
• Auxiliary heater: 500W power maintains test chamber internal temperature at 40°C ± 10°C or 55°C ± 10°C
• Specimen mass measurement: automatic acquisition and recording by balance (2000g capacity, 0.1g accuracy)
• Fuel gas: Propane with purity over 95%, minimum pressure 3.5kPa ± 1kPa
• Fully automatic computer control, acquisition, recording, and result calculation

• LabVIEW style interface displaying transmittance vs. time curves
• Key testable data includes smoke optical density, specific optical density, mass optical density, mass loss, mass loss rate, and average smoke density
• Operation interfaces for calibration, editing, testing, and parameter adjustment

Conforms to GB/T 8323.2-2008 "Plastics - Smoke Generation - Part 2: Determination of Smoke Density by the Single-Chamber Method" and ISO 5659-2:2017 "Plastics - Smoke Generation - Part 2: Determination of Optical Density by a Single-Chamber Method".