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

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123456789101112131415161718192021222324252627282930313233343536373839404142A B C D E F G H I J K L1 2 3 4 5 6 7Series ..\Manufactured Home Series #1\Test SDC01 Smoldering Chair in Living RoomTime 1ISO Gas FED = 0.3CO2 CO HCN ASET Final Value Minimum Outside Room of OriginMaster Bedroom (A) FEDG GASA_3 GASA_1 - 6172 0.301 5397 (Smoke) 6172 (ISO Gas)Utility Hallway (C) FEDG GASC_3 GASC_1 - 0.269Front Door Hallway (F) FEDG GASF_3 GASF_1 - 0.065Burn Room (BEK) FEDG GASB_3 GASB_1 - 6172 0.301NIST Gas FED = 0.3CO2 CO HCN ASET Final ValueMaster Bedroom (A) FEDGN GASA_3 GASA_1 - 0.000 7272Utility 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 - 0.000ISO Convected Heat = 0.3Temperature ASET Final ValueMaster Bedroom (A) FEDH TCA_4 0.145Burn Room Bedroom (B) FEDH TCB_4 0.177Utility Hallway (C) FEDH TCC_4 0.155Hallway Outside Burn Room Bedroom (D) FEDH TCD_4 0.156Living Room (E) FEDH TCE_4 0.172Front Door Hallway (F) FEDH TCF_4 0.171Closed Bedroom (G) FEDH TCG 0.114Smoke Obscuration = 0.25 m-1OD ASET Final ValueMaster Bedroom (A) Smoke SMA_4 6277 0.255Burn Room Bedroom (B) Smoke SMB_4 0.127Utility Hallway (C) Smoke SMC_4 5397 0.250Hallway Outside Burn Room Bedroom (D) Smoke SMD_4 0.078Living Room (E) Smoke SME_4 6172 0.267Front Door Hallway (F) Smoke SMF_4 6012 0.257Closed Bedroom (G) Smoke SMG 0.000
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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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Page 281 and 282: 4. Develop standard nuisance alarm
Page 283 and 284: Finally, a press day was held that
Page 285 and 286: 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: Test SDC41 Vegetable Oil on Kitchen
Page 333 and 334: 81828384858687888990919293949596979
Page 335 and 336: 15715815916016116216316416516616716
Page 337 and 338: 23323423523623723823924024124224324
Page 339 and 340: 30730830931031131231331431531631731
Page 341 and 342: 38138238338438538638738838939039139
Page 343 and 344: 45645745845946046146246346446546646
Page 345 and 346: 52752852953053153253353453553653753
Page 347 and 348: 60260360460560660760860961061161261
Page 349 and 350: 67867968068168268368468568668768868
Page 351 and 352: 75475575675775875976076176276376476
Page 353 and 354: 83083183283383483583683783883984084
Page 355 and 356: 90690790890991091191291391491591691
Page 357 and 358: 98298398498598698798898999099199299
Page 359 and 360: 10661067106810691070107110721073107
Page 361 and 362: 11541155115611571158115911601161116
Page 363 and 364: 12421243124412451246124712481249125
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
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and 500°C in Test 7. Figure 19 sho
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.05.04Absorbance.03.02CO2CO2.010H2O
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.05.04Absorbance.03.02H2OH2O.01CO20
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.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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