LFY-626 Smoke Density Method Plastic Combustion Performance Tester

Main application
This instrument is suitable for measuring the specific optical density produced by materials when exposed to radiation or combustion under specified test conditions. The specific optical density is calculated based on the transmittance measured in the specified test chamber volume, optical path length, and test area. The maximum optical density value is used to represent the optical density of the material.

Technical indicators
1. Inner dimensions of the test chamber: height 914mm × width 914mm × depth 610mm;
2. Light source: 6V incandescent tungsten;
3. Measurement accuracy of transmittance: less than ±3% of the maximum reading within each scale range;
4. Heating wire power of the radiation furnace: 600 watts;
5. Centerline distance of the horizontal combustion tube from the lower edge of the opening of the sample box: 6.4 ± 0.8mm;
6. Fuel: 95% or more propane, flow rate 50 cm3/min, air input volume 500 cm3/min;
7. Sample: (75 ± 0.5)mm × (75 ± 0.5)mm × (1 ± 0.2)mm.

Applicable standards
GB8323-87 Test Method for Plastic Combustion Performance - Smoke Density Method