When the fire occur, hard-burning examination which shows the ignition of sample surface and following haze degree, is indicated with a quotient and a grade which is appeared by the test.
 
NGC Testing Services Fire Testing Laboratory

Grade measurement by ASTM E-84-98 (Foot notes : FSI = Flame

Spread Index, SDI = Smoke Developed Index)
 
   
Examination date : 1999.03.19
Examination material :

JEIL TILE CEILING (AL 0.8T, 600mm X 600mm, perforation diameter 1.8mm, perforation interval 5mm, polyester powder coating) w/acoustic fabric(0.2T)
Examination condition : FSI = 5, SDI = 40
Examination result : Class "A"

 

 
   
Examination date : 1999.03.19
Examination material :

JEIL PLANK CEILING (AL 0.8T, 450mm X 2400mm, perforation diameter 1.8mm, perforation interval 5mm, polyester powder coating) w/ acoustic fabric (0.2T)
Examination condition : FSI = 5, SDI = 225
Examination result : Class "A"

 

 
   
Examination date : 1999.03.19
Examination material :

JEIL PLANK CEILING (STL 0.7T, 300mm X 1200mm, perforation diameter 2.5mm, perforation interval 5.5mm, polyester powder coating) w/ acoustic fabric (0.2T), glass fiber(25T)
Examination condition : FSI = 10, SDI = 5
Examination result : Class "A"

 

 
   
Examination date : 1999.03.19
Examination material :

JEIL STRIP CEILING (AL 0.8T, 300mm X 2400mm, perforation diameter 1.8mm, perforation interval 5mm, polyester powder coating) w/ acoustic fabric (0.2T)
Examination condition : FSI = 5, SDI = 195
Examination result : Class "A"