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

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271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306A B C D E F G H I J K LTest SDC08 Smoldering 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 - 3079 0.300 3079 (ISO Gas) 3771 (Smoke)Utility Hallway (C) FEDG GASC_3 GASC_1 - 0.078Front Door Hallway (F) FEDG GASF_3 GASF_1 - 3887 0.300Burn Room (BEK) FEDG GASB_3 GASB_1 - 3819 0.308NIST Gas FED = 0.3CO2 CO HCN ASET Final ValueMaster Bedroom (A) FEDGN GASA_3 GASA_1 - 0.000Utility Hallway (C) FEDGN GASC_3 GASC_1 - 0.000Front Door Hallway (F) FEDGN GASF_3 GASF_1 - 0.178Burn Room (BEK) FEDGN GASB_3 GASB_1 - 0.062ISO Convected Heat = 0.3Temperature ASET Final ValueMaster Bedroom (A) FEDH TCA_4 0.104Burn Room Bedroom (B) FEDH TCB_4 3783 0.301Utility Hallway (C) FEDH TCC_4 0.148Hallway Outside Burn Room Bedroom (D) FEDH TCD_4 0.170Living Room (E) FEDH TCE_4 0.172Front Door Hallway (F) FEDH TCF_4 0.206Closed Bedroom (G) FEDH TCG 0.046Smoke Obscuration = 0.25 m-1OD ASET Final ValueMaster Bedroom (A) Smoke SMA_4 3783 0.284Utility Hallway (C) Smoke SMC_4 3771 0.263Hallway Outside Burn Room Bedroom (D) Smoke SMD_4 3801 0.279Living Room (E) Smoke SME_4 3779 0.259Front Door Hallway (F) Smoke SMF_4 3785 0.266
307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343A B C D E F G H I J K LTest SDC09 Flaming Mattress in Bedroom (Burn Room Door Closed)Time 1ISO Gas FED = 0.3CO2 CO HCN ASET Final Value Minimum Outside Room of OriginMaster Bedroom (A) FEDG GASA_3 GASA_1 - 0.134 163 (ISO Heat) 1067 (Smoke)Utility Hallway (C) FEDG GASC_3 GASC_1 - 0.019Front Door Hallway (F) FEDG GASF_3 GASF_1 - 0.011Burn Room (BEK) FEDG GASB_3 GASB_1 - 187 0.337NIST Gas FED = 0.3CO2 CO HCN ASET Final ValueMaster Bedroom (A) FEDGN GASA_3 GASA_1 - 0.000Utility Hallway (C) FEDGN GASC_3 GASC_1 - 0.000Front Door Hallway (F) FEDGN GASF_3 GASF_1 - 0.000Burn Room (BEK) FEDGN GASB_3 GASB_1 - 0.100ISO Convected Heat = 0.3Temperature ASET Final ValueMaster Bedroom (A) FEDH TCA_4 0.030Burn Room Bedroom (B) FEDH TCB_4 163 0.304Utility Hallway (C) FEDH TCC_4 0.028Hallway Outside Burn Room Bedroom (D) FEDH TCD_4 0.028Living Room (E) FEDH TCE_4 0.029Front Door Hallway (F) FEDH TCF_4 0.029Closed Bedroom (G) FEDH TCG 0.021Smoke Obscuration = 0.25 m-1OD ASET Final ValueMaster Bedroom (A) Smoke SMA_4 0.189Utility Hallway (C) Smoke SMC_4 1113 0.307Hallway Outside Burn Room Bedroom (D) Smoke SMD_4 1067 0.438Living Room (E) Smoke SME_4 1111 0.255Front Door Hallway (F) Smoke SMF_4 1073 0.818Closed Bedroom (G) Smoke SMG 0.004
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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
Page 287 and 288: 10 References[1] Bukowski, R. W., W
Page 289 and 290: [23] The SFPE Handbook of Fire Prot
Page 291 and 292: [48] Bryan, J. L. “Project People
Page 293 and 294: Calculated Alarm Times
Page 295 and 296: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Page 297 and 298: Test SDC03 Smoldering Mattress in B
Page 299 and 300: Test SDC05 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 315 and 316: Test SDC25 Flaming Chair in Living
Page 319 and 320: Series ..\Manufactured Home Series
Page 329 and 330: Test SDC41 Vegetable Oil on Kitchen
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Page 365 and 366: 13301331133213331334133513361337133
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
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.1.08.050Absorbance.06.04CO2-.05720
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.14.12.1CO2CO2Absorbance.08.06.04.0
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1.41.2NDIRFTIR1.00.8CO 2[%]0.60.40.
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0.050.04NDIRFTIR0.03CO [%]0.020.010
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