Certifications

est

Report

No. AJFS1809009217FF Date: OCT.17, 2018 Page 2 of 6

I. TEST CONDUCTED

This test was conducted in accordance with ASTM E84-2017 Standard Test Method for Surface

Burning Characteristics of Building Materials.

II. INTRODUCTION

The method, designated as ASTM E84-2017, "Standard Method of Test for Surface Burning

Characteristics of Building Materials", is designed to determine the relative surface burning

characteristics of materials under specific test conditions. Results are expressed in terms of flame

spread index (FSI) and smoke developed index (SDI).

The purpose of this test method is to determine the relative burning behavior of the material by

observing the flame spread along the specimen. Flame spread and smoke developed index are

reported. However, there is not necessarily a relationship between these two measurements.

III. TEST PROCEDURE

The tunnel is preheated to 65.6℃(150°F), as measured by the floor-embedded thermocouple located

7.09m (23.25 ft) downstream of the burner ports, and allowed to cool to 40.6℃(105°F), as measured by

the floor-embedded thermocouple located 3.96m (13 ft) from the burners. At this time the tunnel lid is

raised and the test sample is placed along the ledges of the tunnel so as to form a continuous ceiling

7.32m (24 ft) long, 304.8mm (12 in) above the floor. The lid is then lowered into place.

Upon ignition of the gas burners, the flame spread distance is observed and recorded every 15 seconds.

Flame spread distance versus time is plotted ignoring any flame front recessions. If the area under the

curve (A) is less than or equal to 97.5 min·ft, FSI = 0.515·A; if greater, FSI = 4900/(195-A). Smoke

developed is determined by comparing the area under the obscuration curve for the test sample to that

of inorganic reinforced cement board and red oak, arbitrarily established as 0 and 100, respectively.

IV. CONDITIONING

Prior to testing, the sample was conditioned,

To a constant weight at a temperature of 73.4±5°F (23±2.8°C) and at a relative humidity

of 50±5%

To be continued….