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Engineering Laboratory / Fire Research Division

National Fire Research Laboratory

Test038_Mattress_BA1''_R1

Table 1. Test Information
Name
Test038_Mattress_BA1''_R1
Date
Description

12 inch Memory Foam Mattress with bedding and two pillows Foam 1" propane flame ignition. 31114g. Camera setting: F4.0,1/60,Gain:0. LED 100% power
Specimen
12" Polyuretane Foam Mattress with two pillows and bedding
Ignition
propane wand
Project ID (s)
Design Fires - Residential and Office Items
Test Director
Hamins

Timelapse Video with Heat Release Rate Plot

Table 2. Summary of Test Results
Measurement Value Uc Unit
Peak Heat Release Rate, PHRR
4,563
233
kW
Time to Peak Heat Release Rate
12.73
0.07
min
Total Heat Released, THR
737
41
MJ
Gas Burner Total Heat Released, NGTHR
0
 -
MJ
Heat Release Quality Confirmation, HRQC
 Not measured -
MJ/MJ
Net Specimen Mass (gravimetric), NM = Mi-Mf
30.130
0.028
kg
Net Effective Heat of Combustion = THR / NM
24.5
1.3
MJ/kg
O2 Yield = O2 Consumed / NM
1.799
0.058
kg/kg
CO2 Yield = CO2 Generated / NM
2.018
0.073
kg/kg
CO Yield = CO Generated / NM
0.02283
0.00082
kg/kg
Soot Yield = Soot Generated / NM
0.0369
0.0049
kg/kg
Baseline Hood Exhaust Flow
41.7
1.3
kg/s
Test Duration = Time(Fire Out) - Time(Ignition)
19.08
0.03
min

Uc = Combined Expanded Uncertainty with 95% confidence level

Table 3. Summary of Test Input Parameters
Parameter Value Uc Unit
Fuel Type
Polyurethane Foam
 - -
Hood Size
9
 -
m
Effective Duct Diameter
1.975
0.005
m
Exhaust Flow Correction Factor
1.055
0.034
 -
Net Heat of Combustion (per unit mass O2), Ef
13.10
0.52
MJ/kg
Net Heat of Combustion(per unit mass fuel), HOCf
25.00
0.80
MJ/kg
Initial Specimen Mass, Mi (gravimetric)
31.83
0.02
kg
Final Specimen Mass, Mf (gravimetric)
1.70
0.02
kg
Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
Figure 1. Plot of Heat Release Rate data with event markers and error bars shown at peak.
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Table 4. Summary of Observed Test Events
Event Time (min) Description Video Snapshot Image
1
0.00
Ignition
Ignition
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2
5.00
Flame Dripping
Flame Dripping
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3
11.18
Pool Fire Underneath
Pool Fire Underneath
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peak
12.73
Peak HRR
Peak HRR
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4
19.08
Fire Out
Fire Out
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Table 5. Supplemental Data Plots

Plot of Oxygen Dry Volume Fraction in hood exhaust stream.
Plot of Oxygen Dry Volume Fraction in hood exhaust stream.
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Plot of Carbon Dioxide Dry Volume Fraction in hood exhaust stream.
Plot of Carbon Dioxide Dry Volume Fraction in hood exhaust stream.
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Plot of Carbon Monoxide Dry Volume Fraction in hood exhaust stream.
Plot of Carbon Monoxide Dry Volume Fraction in hood exhaust stream.
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Plot of Radiant Heat Flux data with event markers. r= radial distance from center of hood, h=height above floor.
Plot of Radiant Heat Flux data with event markers. r= radial distance from center of hood, h=height above floor.
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Plot of Smoke Laser Extinction Coefficient in hood exhaust stream.
Plot of Smoke Laser Extinction Coefficient in hood exhaust stream.
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Plot of Exhaust Duct Mass Flow Rate.
Plot of Exhaust Duct Mass Flow Rate.
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Bryant, R. and Bundy, M. The NIST 20 MW Calorimetry Measurement System for Large-Fire Research, Technical Note (NIST TN) 2077, 2019
https://doi.org/10.6028/NIST.TN.2077(link is external)

NIST Fire Calorimetry Database (FCD)
https://doi.org/10.18434/mds2-2314(link is external)

Report Process Script Version
NFRL_Report_8.6.0
Last Updated March 26, 2025