Smoke Density Tester | ASTM E662 / ISO 5659-2 Compliant

The Smoke Density Tester is designed to measure the optical density of smoke generated during combustion of materials and determine the Smoke Density Rating (SDR). Originally developed by Rohm and Haas in the 1970s based on ASTM D2843, the instrument uses Billung’s law and direct flame impingement on the sample to evaluate smoke production. It is widely used for testing PVC conduits, automotive interior materials, building materials, and other solid combustibles in accordance with international standards.

Applications

Testing smoke density for building materials and construction products

Evaluating smoke generation from textile materials and solid materials

Automotive interior material fire performance assessment

Compliance testing for aircraft and marine materials

Standards Compliant

ASTM E662 – Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials

ASTM F814 – Standard Test Method for Smoke Density of Aircraft Materials

NFPA 258 – Standard Test Method for Smoke Generation of Building Materials

Boeing BSS 7238 – Smoke Emission Test for Aircraft Materials

FAR Part 25 Appendix F Part V – Federal Aviation Regulations, Aircraft Materials Smoke Test

Aircraft Materials Fire Test Handbook Chapter 6

Airbus AITM 2.0007A / 2.0007B

IMO MSC.61(67) Annex 1 Parts 1&2 – Marine Smoke Test Standards

ISO 5659-2 – Plastics – Determination of Smoke Density

IMO FTCP Part 2

BS 6401, ABD0031

Key Features

Durable Teflon-Coated Chamber

The test chamber is lined with Teflon, resisting corrosive smoke and extending equipment lifespan.

Clear Visibility Markers

The bottom of the chamber includes an “EXIT” sign, allowing operators to easily observe sample clarity or blurriness through the observation window.

Precision Light Sensing

The tester uses an incandescent light source with a silicon photodiode and cosine correction. Color filters block UV and IR light to ensure accurate measurements.

High-Pressure Flame Impact

The main burner applies a flame at 276 KPa to the test sample, while an auxiliary burner at 138 KPa combusts any dripping material for thorough testing.

Advanced Data Display

Light transmittance values are recorded every 15 seconds, producing a transmittance curve. The SDR value is calculated automatically and displayed after the test.

Comprehensive Test Reporting

Test software compiles data from up to three sample groups, generating SDR development curves and automatically determining compliance with standards.

User-Friendly Data Management

Test results can be exported to a computer and connected to a printer for report generation, improving efficiency.

Technical Parameters

Parameter	Specification
Burning Lamp	Length: 260 mm, Nozzle diameter: 0.13 mm, 45° angle to smoke box
Light Source	Incandescent lamp, 15 W, 6 V
Smoke Density Measurement Range	0–100%
Measurement Accuracy	±3%
Receiver	Silicon photovoltaic cells, 0%–100% light transmittance
Main Burner Working Pressure	276 KPa (adjustable)
Auxiliary Burner Pressure	138 KPa
Exhaust System	High-capacity fan for outdoor discharge
Test Chamber	Teflon-coated, corrosion-resistant
Data Display	Automatic SDR calculation and transmittance curve

FAQ

1. What is a Smoke Density Tester?

It is an instrument used to evaluate the optical density of smoke produced when materials are burned, generating a Smoke Density Rating (SDR).

2. Why is smoke density testing important?

Smoke density affects visibility and safety in buildings, vehicles, and aircraft. Compliance ensures materials meet fire safety standards.

3. What materials can be tested?

PVC conduits, automotive interior materials, building materials, textiles, plastics, and aircraft components.

4. How does the test work?

A flame is applied to the sample, smoke passes through a chamber, and light transmittance is measured with a silicon photodiode to calculate SDR.

5. Which standards does it comply with?

ASTM E662, ASTM F814, NFPA 258, ISO 5659-2, Boeing BSS 7238, Airbus AITM 2.0007A/B, IMO MSC.61(67), and others.

2025-12-08 17:49