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

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1020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065SeriesA B C D E F G H I J K L..\Kinston Series\Test SDC20 Flaming Mattress in Bedroom (Burn Room Door Closed)Time 1ISO Gas FED = 0.3CO2 CO HCN ASET Final Value Minimum Outside Room of OriginBedroom 1 (B1) FEDG GASB3 GASB1 - 0.107 210 (ISO Heat) 3602 (End of Test)Upstairs Hallway (H) FEDG GASF3 GASF1 - 0.032Bedroom 3 Burn Room (B3)Living Room Burn Room (L)Foyer (F)Den (D)Kitchen(K)NIST Gas FED = 0.3CO2 CO HCN ASET Final ValueBedroom 1 (B1) FEDGN GASB3 GASB1 - 0.000Upstairs Hallway (H) FEDGN GASF3 GASF1 - 0.000Bedroom 3 Burn Room (B3)Living Room Burn Room (L)Foyer (F)Den (D)Kitchen(K)ISO Convected Heat = 0.3Temperature ASET Final ValueBedroom 1 (B1) FEDH TCB14 0.120Upstairs Hallway (H) FEDH TCH4 0.121Bedroom 3 Burn Room (B3) FEDH TCB34 210 0.315Living Room Burn Room (L) FEDH TCL4 0.098Foyer (F) FEDH TCF4 0.100Den (D) FEDH TCD4 0.094Kitchen(K) FEDH TCK4 0.094Smoke Obscuration = 0.25 m-1OD ASET Final ValueBedroom 1 (B1) Smoke SMB12S 0.223Upstairs Hallway (H) Smoke SMH2S 0.145Bedroom 3 Burn Room (B3)Living Room Burn Room (L)Foyer (F) Smoke SMF2S 0.083Den (D) Smoke SMD2S 0.036Kitchen(K)
10661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109A B C D E F G H I J K LTest SDC21 Smoldering Mattress in BedroomTime 1ISO Gas FED = 0.3CO2 CO HCN ASET Final Value Minimum Outside Room of OriginBedroom 1 (B1) FEDG GASB3 GASB1 - 0 0.000 1965 * end of tes 1965 (end of test)Upstairs Hallway (H) FEDG GASF3 GASF1 - 0 0.010Bedroom 3 Burn Room (B3)Living Room Burn Room (L)Foyer (F)Den (D)Kitchen(K)NIST Gas FED = 0.3CO2 CO HCN ASET Final ValueBedroom 1 (B1) FEDGN GASB3 GASB1 - 0 0.000Upstairs Hallway (H) FEDGN GASF3 GASF1 - 0 0.000Bedroom 3 Burn Room (B3)Living Room Burn Room (L)Foyer (F)Den (D)Kitchen(K)ISO Convected Heat = 0.3Temperature ASET Final ValueBedroom 1 (B1) FEDH TCB14 0 0.055Upstairs Hallway (H) FEDH TCH4 0 0.064Bedroom 3 Burn Room (B3) FEDH TCB34 0 0.067Living Room Burn Room (L) FEDH TCL4 0 0.049Foyer (F) FEDH TCF4 0 0.052Den (D) FEDH TCD4 0 0.049Kitchen(K) FEDH TCK4 0 0.049Smoke Obscuration = 0.25 m-1OD ASET Final ValueBedroom 1 (B1) Smoke SMB12S 0 0.126Upstairs Hallway (H) Smoke SMH2S 0 0.241Bedroom 3 Burn Room (B3)Living Room Burn Room (L)Foyer (F) Smoke SMF2S 0 0.048Den (D) Smoke SMD2S 0 0.027Kitchen(K)
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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 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 313 and 314: Test SDC23 Smoldering Chair in Livi
Page 315 and 316: Test SDC25 Flaming Chair in Living
Page 317 and 318: Test SDC27 Smoldering Chair in Livi
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
Page 331 and 332: 12345678910111213141516171819202122
Page 333 and 334: 81828384858687888990919293949596979
Page 335 and 336: 15715815916016116216316416516616716
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Page 343 and 344: 45645745845946046146246346446546646
Page 345 and 346: 52752852953053153253353453553653753
Page 347 and 348: 60260360460560660760860961061161261
Page 349 and 350: 67867968068168268368468568668768868
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Page 353 and 354: 83083183283383483583683783883984084
Page 355 and 356: 90690790890991091191291391491591691
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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
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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