FASTData January 1999 Release

Test Type: Cone Calorimeter, Test Number: T5631, Description File: t5631



Descriptions
FDMS: Obtaining Data
Documentation
Abstract:
Computer-Aided Molecular Design of Fire Resistant Aircraft Materials.
Material:Polystyrene Disk (7.3cm diameter)
Lab:National Institute of Standards and Technology
Sponsor:National Institute of Standards and Technology
Date:10/24/1992
Test Ref No:T5631
Tested by:Jack Lee
Approved by
Scientific Officer:
James Brown

Test Results (summary)

Mass Lost:2970.58 g/m2 Total Heat Released:85.8179 MJ/m2
Peak RHR:295.55 kW/m2Peak Mass Loss Rate:10.4377 g/m2s

Summary Data From Ignition

Units Test Mean 60 s 180 s 300 s
Heat Release kW/m2 192.849 184.013 208.702 238.645
Mass Loss Rate g/m2s 0.00809392 0.0054141 0.00672382 0.00793619
Heat of CombustionMJ/kg28579900 32.4606 30.3915 29.7355
Specific Ext. Aream2/kg - - - -
Carbon Dioxidekg/kg 2.07556 2.77013 2.57276 2.44067
Carbon Monoxidekg/kg 0.0521293 0.0497918 0.0532861 0.058242

Observations and Comments

Flaming out time 12 minutes and 47 seconds
Sample started to smoke at 3 minutes
Sample started to flashing at top surface at 5 min. 5 sec.
Sample is 7.3cm by 0.3cm and weight is 12.3grams

Details of Test Procedure Used

Heat Flux: 25 kW/m2 Nominal Flow:24 l/s
Orifice Constant: 0.0391792 Heat per Unit Mass O2:12.98 J/kg
Heater Orientation:H Spark Ignitor Used:Y
Grid Used: N Frame Used:N
Conditioning: 50 RH @ 296 K Test Conditions: 50 RH
Specimen Thickness:- Specimen Area:0.0043 m2

Test Results

Initial Mass: 0.0123 g Time of Peak RHR: 555 s
Final Mass: - Peak RHR: 295.55 kW/m2
Mass Lost: 2970.58 g/m2 Peak Mass Loss Rate: 10.4377 g/m2s
Ignition Time:319 s Peak Extinction Area:-
Flameout Time:766 s Total Heat Released: 85.8179 MJ/m2

Test Quality Indicators

Publication Status:Unpublished
Statistical Basis of Data:Data available for the same test method, but different test conditions
Material Development/
Production Status:
Experimental material
Evaluation Status:Data have been validated
Laboratory
Accreditation Status:
The laboratory is recognized by (inter)national accreditation bodies
Completeness of
Material Description:
Partial information on material
Completeness of Test
Procedure Description:
Standard test procedure

Test Results (summary)

Data Plots

Heat release rate per unit area

Mass Loss Rate Per Unit Area

CO2 Yield

CO Yield

Smoke Extinction Area


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Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899