ASTM E84 Steiner Tunnel Test Installation
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Web: standard-groups.com
Application
Interior and exterior building materials: Testing flame spread performance of floors, walls, and ceilings.
Insulation and thermal materials: Fire performance evaluation of polyurethane, mineral wool, glass wool, and other insulation products.
Furniture and composite panels: Fire resistance testing for plywood, upholstered furniture, and other wood or composite materials.
Other interior materials: Fire testing of coatings, wallpapers, and decorative panels.
Compatible test products: Tunnel furnace, dual-head flame nozzle, smoke collection system.
Standards
This test apparatus conforms to the following international standards:
ASTM E84 — Standard Test Method for Surface Burning Characteristics of Building Materials
NFPA 255 — Standard Method of Test of Surface Burning Characteristics of Building Materials
UL 723 — Standard for Test for Surface Burning Characteristics of Building Materials
ISO 5660 — Fire Testing — Heat Release and Flame Spread Measurements
Parameters
| Parameter | Specification |
|---|---|
| Test Method | ASTM E84 / NFPA 255 / UL 723 |
| Flame Source | Dual-head nozzle of tunnel furnace |
| Test Duration | 10 minutes |
| Measured Indicators | Flame Spread Index (FSI), Smoke Developed Index (SDI) |
| FSI Classification | Class A: 0–25Class B: 26–75Class C: 76–200 |
| SDI Range | 0–450 |
| Applicable Materials | Wood, composite panels, decorative materials, insulation/thermal materials |
Accessories
Tunnel furnace main unit
Dual-head flame nozzle
Sample mounting fixtures
Smoke collection and analysis system
Data acquisition and recording system
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