Performance of Home Smoke Alarms - National Institute of ...

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868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905A B C D E F G H I J K LTest SDC38 Flaming Mattress in BedroomTime 1ISO Gas FED = 0.3CO2 CO HCN ASET Final Value Minimum Outside Room of OriginMaster Bedroom (A) FEDG GASA_3 GASA_1 - 0.000 143 (Smoke) 159 (Smoke)Utility Hallway (C) FEDG GASC_1 GASC_3 - 0.222Front Door Hallway (F) FEDG GASF_3 GASF_1 - 0.023Burn Room (BEK) FEDG GASB_3 GASB_1 - 0.070NIST Gas FED = 0.3CO2 CO HCN ASET Final ValueMaster Bedroom (A) FEDGN GASA_3 GASA_1 - 0.000Utility Hallway (C) FEDGN GASC_1 GASC_3 - 0.000Front Door Hallway (F) FEDGN GASF_3 GASF_1 - 0.000Burn Room (BEK) FEDGN GASB_3 GASB_1 - 0.000ISO Convected Heat = 0.3Temperature ASET Final ValueMaster Bedroom (A) FEDH TCA_4 0.021Burn Room Bedroom (B) FEDH TCB_4 0.087Utility Hallway (C) FEDH TCC_4 0.014Hallway Outside Burn Room Bedroom (D) FEDH TCD_4 0.022Living Room (E) FEDH TCE_4 0.016Front Door Hallway (F) FEDH TCF_4 0.017Closed Bedroom (G) FEDH TCG 0.021Smoke Obscuration = 0.25 m-1OD ASET Final ValueMaster Bedroom (A) Smoke SMA_3 0.040Burn Room Bedroom (B) Smoke SMB_3 143 0.262Utility Hallway (C) Smoke SMC_3 0.069Hallway Outside Burn Room Bedroom (D) Smoke SMD_3 159 0.271Living Room (E) Smoke SME_3 0.062Front Door Hallway (F) Smoke SMF_3 177 0.467Closed Bedroom (G) Smoke SMG 0.012
906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943A B C D E F G H I J K LTest SDC39 Flaming Mattress in BedroomTime 1ISO Gas FED = 0.3CO2 CO HCN ASET Final Value Minimum Outside Room of OriginMaster Bedroom (A) FEDG GASA_3 GASA_1 - 0.000 120 (Smoke) 132 (End of Test)Utility Hallway (C) FEDG GASC_1 GASC_3 - 0.024Front Door Hallway (F) FEDG GASF_3 GASF_1 - 0.000Burn Room (BEK) FEDG GASB_3 GASB_1 - 0.002NIST Gas FED = 0.3CO2 CO HCN ASET Final ValueMaster Bedroom (A) FEDGN GASA_3 GASA_1 - 0.000Utility Hallway (C) FEDGN GASC_1 GASC_3 - 0.000Front Door Hallway (F) FEDGN GASF_3 GASF_1 - 0.000Burn Room (BEK) FEDGN GASB_3 GASB_1 - 0.000ISO Convected Heat = 0.3Temperature ASET Final ValueMaster Bedroom (A) FEDH TCA_4 0.003Burn Room Bedroom (B) FEDH TCB_4 0.027Utility Hallway (C) FEDH TCC_4 0.002Hallway Outside Burn Room Bedroom (D) FEDH TCD_4 0.003Living Room (E) FEDH TCE_4 0.002Front Door Hallway (F) FEDH TCF_4 0.002Closed Bedroom (G) FEDH TCG 0.002Smoke Obscuration = 0.25 m-1OD ASET Final ValueMaster Bedroom (A) Smoke SMA_3 0.017Burn Room Bedroom (B) Smoke SMB_3 120 0.266Utility Hallway (C) Smoke SMC_3 0.012Hallway Outside Burn Room Bedroom (D) Smoke SMD_3 0.098Living Room (E) Smoke SME_3 0.011Front Door Hallway (F) Smoke SMF_3 0.041Closed Bedroom (G) Smoke SMG 0.005
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NIST Technical Note 1455Performance
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Certain commercial entities, equipm
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2.5 Alarm Identification ..........
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7.5.3 Tell-tale Sprinklers ........
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Figure 37. Ion-1, six wicks 12 s de
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Figure 106. Gas temperatures from c
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Figure 161. Frying margarine scenar
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Figure 205. Bread in a toaster, fan
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xviii
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The fire emulator/detector evaluato
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installed close to cooking applianc
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xxiv
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Canada (NRCC), in conjunction with
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NIST, and others felt that it was t
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A second test site, obtained throug
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Thus typical residential sprinklers
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2 Residential Fire Alarms, Sensor R
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Figure 2. Schematic of the FE/DE (a
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urner fuel and air wereincremented
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Thus, within the range typical ofio
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k = ln( I / I ) L mextinction (m -1
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The test series are identified as S
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Detector Test Series a bm 0bm 1 R c
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87Obscuration (%/ft)654321Smolder s
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87Obscuration (%/ft)654321Smolder s
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Table 2. Listed unmodified alarm se
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1Laser Light Transmittance(1.52 m p
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Figures 28 - 37 show the results fo
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Laser Light Transmittance(1.52 m pa
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2.7 Effect of Sensor Board Location
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0.3Axial velocity 5 cm below ceilin
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0.7-5Laser Light Transmittance(1.52
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0.71Laser Light Transmittance(1.52m
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for all (modified) ionization alarm
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Table 6. Top fire scenarios ranked
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The flaming chair was chosen with a
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3.3 Ignition MethodologyThere were
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Figure 85 shows the smoldering rod
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20.12 m4.06 m2.34 m 1.68 m 2.59 m74
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3.34 m2.29 m 3.27 m0.53 mBath3.63 m
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temperature measurement in the diff
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1.04 m0.53 m0.80 m3.38 mTemperature
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4.2 Sample MassMass loss from the o
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With different line lengths, vacuum
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Table 9. Locations for primary opti
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Finally, a size distribution measur
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of the limited supply of analog-mod
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5 Fire Source Test Results and Calc
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Table 12. Test Conditions for tests
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Remote Bedroom45Temperature (°C)40
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Hallway Outside Remote Bedroom70Tem
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Living Room60Temperature (°C)50403
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Closed Bedroom301520 mm25Temperatur
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Remote Bedroom2.52.020 mm900 mmOpti
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Hallway Outside Remote Bedroom1.41.
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Living Room2.52.020 mm900 mmOptical
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Closed Bedroom0.10Initiation of Sup
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Carbon Dioxide2.01.5Remote BedroomM
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Smoke Alarm Output10030Smoke Alarm
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Heat Alarm-600Initiation of Suppres
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• carbon monoxide alarms - 50 x 1
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5.4.2 Tenability TimesChapter 8 of
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Alarm Code was revised to require s
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Measurements of the aerosol number
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ANumber Concentration (particles/cm
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Number Concentration (particles/cm3
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10 6 Number0.8Ion 110 5Ion 2Ion 3Io
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SDC24 was a cooking oil fire in the
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5002Mass Concentration (mg/m3)37525
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Table 17. Cascade impactor resultsT
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50 % cut-off Diameter(μm)1010.1MMA
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50 % cut-off Diameter(μm)1010.1MMA
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Table 19. Estimated particle size f
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6 Residential Smoke Alarm Nuisance
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A2ARHCBA1DEA3FGU+V+Figure 141. Sche
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lags the MIC current due to the tim
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On several occasions, the SBC data
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0.50.5Velocity or Speed (m/s)0.250-
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One can still observe trends in the
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Time to Alarm Threshold (s)A6005004
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• Photoelectric alarm thresholds
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trend and both experience two peak
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Figure 156 shows the results for ba
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Figure 161 shows the results for ma
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ose about 2 %. The mass concentrati
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photoelectric alarms; however one c
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6.3.6 Broiled and Baked/Broiled Piz
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6.3.7 Broiling HamburgersFour 110 g
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6.3.9 Candle BurningFour scented te
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ealizing the early peak, then climb
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• A somewhat counterintuitive obs
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6.5 FE/DE Emulation of Nuisance Sou
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10080MICD1D86050MIC Current (pA)604
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6.5.2 Cotton Smolder Smoke Fire Sce
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0.50.4ExtinctionMIC1008010080MICD1D
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0.250.2ExtinctionMIC1008010080MICD1
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0.80.70.6ExtinctionMIC1008010080MIC
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0.50.4ExtinctionMIC100908010080MICD
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6.5.5 Heated Margarine or Butter Nu
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Extinction (m -1 )A0.0350.030.0250.
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21.5ExtinctionMIC1008010080MICD1D86
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21.5ExtinctionMIC1008010080MICD1D86
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2.521008010080MICD1D86050Extinction
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7 DiscussionIn 1975, the Indiana Du
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one of the Dual Ion/Photo alarms in
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Table 24. Average time to alarm (in
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series of actions beginning with cu
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Distances are taken as straight lin
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On average, the photoelectric alarm
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Table 28. Available egress time (in
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800700600PhotoIonDual Ion/PhotoAspi
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protection against injury, life los
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ate of fire growth (table 32). Aver
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The FE/DE nuisance source tests cap
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8 SummaryThe data developed in this
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4. Develop standard nuisance alarm
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Finally, a press day was held that
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9 Conclusions1. The data developed
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10 References[1] Bukowski, R. W., W
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[23] The SFPE Handbook of Fire Prot
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[48] Bryan, J. L. “Project People
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Calculated Alarm Times
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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Test SDC03 Smoldering Mattress in B
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Test SDC05 Flaming Mattress in Bedr
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Test SDC07 Flaming Mattress in Bedr
Page 303 and 304: Test SDC09 Flaming Mattress in Bedr
Page 305 and 306: Test SDC11 Smoldering Chair in Livi
Page 307 and 308: Test SDC13 Vegetable Oil on Kitchen
Page 309 and 310: Test SDC15 Flaming Chair Living Roo
Page 311 and 312: Test SDC21 Smoldering Mattress in B
Page 315 and 316: Test SDC25 Flaming Chair in Living
Page 319 and 320: Series ..\Manufactured Home Series
Page 325 and 326: Test SDC37 Smoldering Mattress in B
Page 327 and 328: Test SDC39 Flaming Mattress in Bedr
Page 329 and 330: Test SDC41 Vegetable Oil on Kitchen
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Page 367 and 368: Appendix BFTIR Gas Measurement in H
Page 369 and 370: FTIR GAS MEASUREMENT IN HOME SMOKE
Page 371 and 372: Figure 16. Average of spectra for t
Page 373 and 374: 2.0 EXPERIMENTSExperimental details
Page 375 and 376: Figure 1. Manufactured home and FTI
Page 377 and 378: Figure 3. Upholstered chairs before
Page 379 and 380: 3.0 RESULTS AND DISCUSSIONA total o
Page 381 and 382: and 500°C in Test 7. Figure 19 sho
Page 383 and 384: .05.04Absorbance.03.02CO2CO2.010H2O
Page 385 and 386: .05.04Absorbance.03.02H2OH2O.01CO20
Page 387 and 388: .2CO2CO2.15Absorbance.1.05H2OH2O0CO
Page 389 and 390: .1.08.050Absorbance.06.04CO2-.05720
Page 391 and 392: .14.12.1CO2CO2Absorbance.08.06.04.0
Page 393 and 394: 1.41.2NDIRFTIR1.00.8CO 2[%]0.60.40.
Page 395 and 396: 0.050.04NDIRFTIR0.03CO [%]0.020.010
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