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Crash bar

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In Europe, the use of panic bars is generally confined to code required applications. In US and Canadian commercial buildings, they are frequently used even where not required by code, because bars are seen as being easier to use than knobs or lever handles. For example, when used on the rear service
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However, EN 179 devices shall only be used at locations where people "are familiar with the emergency exit and its hardware and therefore a panic situation is unlikely to appear". Examples of places where EN 179 hardware may be used in place of EN 1125 panic bars include small apartment buildings and
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In 2008, the standard was updated to include an alpha-numeric labelling scheme. In this system, products are tested to various benchmarks and assigned a letter or number accordingly. Products must achieve minimum quality scores in order to receive general CE approval. The nine rating categories are:
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In some applications, such as storefront entrances, panic bars may be dogged during business hours. Dogging is a common feature on panic bars in which the bar is retracted with a key—freeing the door to swing without latching. This allows customers to apply force to any portion of the door, not just
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Center posts are an alternative to vertical rods at double door exits. This offers less clearance because the post remains in the middle when both doors are open. That said, the post can often be removed with a key for occasions when items larger than a single door need to pass through. Center posts
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In the event emergency exits are required, the crash bar works efficiently to allow people to pass through security doors without a reduction in speed. A crash bar's fast-acting mechanism reduces the risk that a rushing crowd might suddenly become a logjam at the exits. Such a human crush, which has
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Some manufacturers offer crash bars designed to resist microbial growth. This can include coating the bar with silver ions in order to create a chemical environment hostile to unwanted microbes. Antimicrobial surfaces have shown to be effective at inhibiting bacterial, mold, and mildew growth; but
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Crash bars are typically found on doors which are required emergency exits serving a particular type or quantity of occupants. Common locations include doors which provide egress from assembly areas, doors which serve many occupants, or doors serving hazardous areas. For buildings subject to the
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are used on the primary exit route, these doors are equipped with crash bars. In the event the automatic door does not function, it becomes an outward swinging rather than sliding door. Crash bars are one of many emergency release mechanisms that can be used with automatic doors. Depending on
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began legal moves to enforce minimum standards for building safety. This slowly led to the legal requirement that venues must have a minimum number of outward opening doors as well as locks which could be opened from the inside. Motivated by the Sunderland disaster, Robert Alexander Briggs
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and may be fitted with alarms. However, in many buildings the crash bar functions as the primary mechanism for opening a door in normal circumstances as well. They may even be used when not required by code because they are quicker and easier for users compared with a knob or lever handle.
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available space, a common alternative is to install an emergency exit door beside the automatic doors. Installation of a secondary crash bar equipped exit is often required in large buildings with revolving doors, since these are too slow for a crowd to move through.
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In Europe, most panic bars are of the cross bar type, which are called Type A in the EN 1125 standard. This contrasts strongly with North American architectural design, which years ago switched to using predominantly touch bars (EN 1125 Type B) in new construction.
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Vertical rods can be affixed to crash bars allowing both doors to be opened with no center clearance obstruction. When the bar is depressed, a chord within the vertical rod gets pulled, which lowers a latch at the top and/or bottom and allows the door to open. The
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such as a local fire marshal. Factors considered when mandating exit devices include the number of occupants who would need to leave in an emergency, the availability of other nearby exits, and proximity to any hazards equipment or chemicals.
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Dogging is distinct from simple unlocking, which permits the user to open the door from both ends but still requires performing an action to release the latches. However, in applications where the exterior side contains an immovable
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canister sparked panic. Children rushing to escape the cinema became crushed against the padlocked exit doors. Even after a police officer broke a padlock, the inward-opening doors were held shut by the mass of bodies behind them.
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Push bars themselves are some of the most reliable door opening mechanisms. To pass CE certification, bars must function between 100,000 and 500,000 opening cycles depending on the rating the manufacturer is seeking.
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Some jurisdictions permit doors to latch to each other. For security, additional latching points may be added. For example, upper and lower vertical rods added to one door and connected to the leaf with no rods via a
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The device consists of a spring-loaded metal bar which is fixed horizontally to a door that swings in the direction of an exit. Depressing the bar unlatches the door, allowing occupants to quickly leave the building.
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EN 1125 is one of two standards which govern exit devices in the EU. The other standard, EN 179, governs door handles, push pads, and other exit devices with emergency release functionality.
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Modern fire standards often mandate that doors be fitted with crash bars in commercial and other occupancies where mass evacuation may be slowed by other types of door openers.
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activation. Because these will not function in a long term power outage, they are most commonly used on secondary doors between a vestibule and the secure part of a building.
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In virtually all situations it is usually the authorities to blame for poor planning, poor design, poor control, poor policing and mismanagement.
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in December 1903 because of door latch designs that were difficult for fleeing patrons to open. Five years later, 174 people in Ohio died in the
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Unlike a traditional crash bar, this type contains a horizontal touch sensor and no moving parts. When the sensor is pressed, it releases an
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is used to ensure the active leaf does not close before the inactive leaf. This configuration is not recommended for high traffic locations.
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Model codes are usually supplemented with amendments adopted locally. Additional requirements may be imposed on a site from an
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Dogging can extend the life of the bar. Some bars can be unlocked /dogged electronically, while others take a cylinder lock,
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may be preferred over vertical rods because they have fewer moving parts, thus they have fewer components that can break.
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door of a business, a worker whose hands are being used to carry bulky items can lean against a bar to release the lock.
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in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.
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American National Standards Institute, ANSI/BHMA A156.3-2001, American National Standard for Exit Devices
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which allows users to open a door by pushing a bar. While originally conceived as a way to prevent
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On 31 December 1929, some 37 years after the panic bolt was patented, 71 children died during the
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While the public generally prefers automatic doors, they can be costly to install and maintain.
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In the US, building exit requirements are generally controlled by model codes such as the
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California Code of Regulations, Title 24, Part 2, "California Building Code." 1008.1.9
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www.int-door-controls.co.uk/ccp51/media/downloads/pdf/Panic-Hardware-Brochure-07.pdf
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Crash bars offer numerous configurations for latching to the door frame.
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However, these moves were not globally copied. For example, in the
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ANSI/BHMA A156.3-2001. American National Standard for Exit Devices
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Differences between Europe and North America and emerging trends
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In the European Union, panic bars are governed by the standard
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which require all public buildings have a minimum number of
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Crash bar doors in a school, with upper vertical rod latches
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National Council of Examiners for Engineering and Surveying
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Edwin Galea, professor of fire safety engineering at the
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OCCUPATIONAL SAFETY AND HEALTH STANDARDS, 29 cfr 1910.36
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Sweet's Indexed Catalogue of Building Construction, 1909
469: – Type of disaster that occurs due to overcrowding 601:"What Is A Pullman Latch? » Door Hardware Genius" 864:"I Dig Hardware » Back-2-Basics: Panic Hardware" 160:By the end of the 20th century, most countries had 1538:Penetrant (mechanical, electrical, or structural) 453:may not be effective at stopping viruses such as 2641: 645:"Panic and Emergency Exit Hardware Introduction" 349:Panic exit devices operated by a horizontal bar 508:. American National Standards Institute. 2001. 1939: 1029: 730: 683:"Code Requirements for Electromagnetic Locks" 970:British Standards relating to Panic Hardware 761:"Briton Exit Hardware Classifications Guide" 252: 1946: 1932: 1346:Hypoxic air technology for fire prevention 1036: 1022: 984:National Fire Protection Association 101, 621:"Vertical Rod Panic Device - Doorware.com" 535:"The cinema panic that killed 71 children" 1731:Fire Equipment Manufacturers' Association 228:Diagram of Vertical Rod Latching Elements 1064:Boiling liquid expanding vapor explosion 889:"Automatic Door Maintenance - Dash Door" 329: 316: 275: 223: 199: 139: 20: 1710:Listing and approval use and compliance 321:Automatic sliding doors with crash bars 62:They are sometimes intended solely for 2642: 680: 1927: 1755:Society of Fire Protection Engineers 1017: 304: 2611: 2599: 1906: 1749:National Fire Protection Association 554: 334:Cross bar style exit doors in Turkey 280:Doors with electromagnetic exit bars 204:Vertical rod vs center post latching 1043: 991:2011 NATIONAL ELECTRICAL CODE (NEC) 480: 325: 13: 1251:Condensed aerosol fire suppression 958: 555:Lock, Samantha (1 November 2022). 518: 284: 100:, at least 602 people died in the 14: 2671: 1626:Fire alarm notification appliance 995: 705: 338: 2622: 2610: 2598: 2588: 2587: 2029: 1905: 1894: 1893: 1224: 1001: 926:from the original on 2020-05-10. 577:2009 International Building Code 402: 1387:Vehicle fire suppression system 1075:Combustibility and flammability 938:"How to sanitize your hardware" 930: 906: 881: 856: 832: 796: 785: 753: 724: 699: 674: 662:"Exit Devices: Dogging Options" 654: 637: 258:the bar, in order to open it. 162:building codes (or regulations) 2535:Glossary of locksmithing terms 613: 593: 569: 548: 527: 512: 498: 489: 1: 2469:Perimeter intrusion detection 1737:Institution of Fire Engineers 1694:Fire Safety Evaluation System 1366:Personal protective equipment 473: 430:Authority Having Jurisdiction 407:The first panic bar, made by 80:Following the events of the 70: 2448:Miniature snap-action switch 2195:Time-delay combination locks 1808:GHS precautionary statements 1646:Manual fire alarm activation 309:In some jurisdictions, when 7: 2550:John M. Mossman Lock Museum 2540:Electromagnetic door holder 1679:Fire protection engineering 1611:Explosive gas leak detector 1428:Electromagnetic door holder 1261:External water spray system 681:Greene, Lori (2017-06-20). 467:Crowd collapses and crushes 460: 416:International Building Code 195: 190:International Building Code 10: 2676: 1855:Harry C. 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1258: 1253: 1248: 1243: 1237: 1235: 1231: 1230: 1223: 1221: 1219: 1218: 1216:Water pressure 1213: 1208: 1206:Structure fire 1203: 1198: 1193: 1188: 1183: 1178: 1173: 1168: 1163: 1158: 1153: 1148: 1143: 1138: 1133: 1128: 1123: 1118: 1113: 1108: 1103: 1101:Dust explosion 1098: 1093: 1088: 1082: 1077: 1072: 1067: 1061: 1055: 1053: 1049: 1048: 1041: 1040: 1033: 1026: 1018: 1012: 1011: 997: 996:External links 994: 993: 992: 989: 982: 978: 977: 973: 972: 966: 965: 964:United Kingdom 960: 957: 954: 953: 929: 905: 880: 855: 831: 795: 784: 752: 723: 698: 687:I Dig Hardware 673: 653: 636: 612: 592: 585: 568: 547: 526: 511: 497: 488: 478: 477: 475: 472: 471: 470: 462: 459: 438: 435: 404: 401: 393: 392: 391:Type of device 389: 386: 383: 380: 377: 374: 373:Test Door Mass 371: 368: 340: 339:European Union 337: 327: 324: 306: 303: 286: 283: 254: 251: 197: 194: 143: 141: 138: 77: 74: 72: 69: 50:crowd crushing 17: 9: 6: 4: 3: 2: 2672: 2661: 2658: 2656: 2653: 2651: 2648: 2647: 2645: 2630: 2629: 2625: 2620: 2618: 2617: 2608: 2606: 2605: 2596: 2594: 2586: 2585: 2582: 2576: 2573: 2571: 2568: 2566: 2563: 2561: 2558: 2556: 2553: 2551: 2548: 2546: 2543: 2541: 2538: 2536: 2533: 2532: 2530: 2528:Miscellaneous 2526: 2520: 2517: 2515: 2512: 2510: 2507: 2505: 2502: 2500: 2497: 2495: 2492: 2490: 2487: 2485: 2482: 2480: 2477: 2475: 2472: 2470: 2467: 2464: 2461: 2459: 2456: 2454: 2451: 2449: 2446: 2444: 2441: 2439: 2436: 2434: 2433:Heat detector 2431: 2429: 2426: 2424: 2421: 2419: 2416: 2414: 2413:Door security 2411: 2409: 2406: 2404: 2401: 2399: 2396: 2394: 2391: 2389: 2386: 2385: 2383: 2381: 2377: 2371: 2368: 2366: 2363: 2361: 2358: 2356: 2353: 2352: 2350: 2348: 2344: 2338: 2335: 2333: 2330: 2328: 2325: 2323: 2320: 2318: 2315: 2313: 2310: 2308: 2305: 2303: 2300: 2298: 2295: 2293: 2290: 2288: 2285: 2283: 2280: 2278: 2275: 2273: 2270: 2268: 2265: 2263: 2260: 2258: 2255: 2254: 2252: 2248: 2242: 2239: 2237: 2234: 2232: 2229: 2227: 2224: 2223: 2221: 2217: 2211: 2208: 2206: 2203: 2201: 2198: 2196: 2193: 2191: 2188: 2186: 2183: 2181: 2178: 2176: 2173: 2171: 2168: 2166: 2163: 2161: 2158: 2156: 2153: 2152: 2150: 2146: 2140: 2137: 2135: 2132: 2130: 2127: 2125: 2122: 2120: 2117: 2116: 2114: 2110: 2104: 2101: 2099: 2096: 2092: 2089: 2087: 2084: 2082: 2079: 2078: 2077: 2074: 2072: 2069: 2067: 2064: 2062: 2059: 2057: 2054: 2052: 2049: 2047: 2044: 2043: 2041: 2037: 2032: 2022: 2019: 2017: 2014: 2012: 2009: 2007: 2006:Master keying 2004: 2002: 2001:Key relevance 1999: 1997: 1994: 1992: 1989: 1987: 1984: 1982: 1979: 1978: 1976: 1972: 1968: 1964: 1960: 1956: 1949: 1944: 1942: 1937: 1935: 1930: 1929: 1926: 1914: 1913: 1904: 1902: 1901: 1892: 1891: 1888: 1882: 1881:Template:HVAC 1879: 1877: 1874: 1872: 1871:Template:Fire 1869: 1868: 1866: 1862: 1856: 1853: 1851: 1848: 1847: 1845: 1841: 1835: 1832: 1830: 1827: 1825: 1822: 1820: 1817: 1814: 1811: 1809: 1806: 1804: 1801: 1799: 1796: 1794: 1791: 1789: 1786: 1784: 1781: 1779: 1776: 1775: 1773: 1769: 1762: 1759: 1756: 1753: 1750: 1747: 1744: 1741: 1738: 1735: 1732: 1729: 1728: 1726: 1722: 1716: 1713: 1711: 1708: 1706: 1703: 1701: 1698: 1695: 1692: 1690: 1687: 1685: 1682: 1680: 1677: 1675: 1672: 1670: 1669:Duct cleaning 1667: 1666: 1664: 1658: 1652: 1649: 1647: 1644: 1642: 1641:Heat detector 1639: 1637: 1634: 1632: 1629: 1627: 1624: 1622: 1619: 1617: 1614: 1612: 1609: 1607: 1604: 1602: 1599: 1597: 1594: 1593: 1591: 1589: 1585: 1579: 1576: 1574: 1571: 1569: 1566: 1564: 1561: 1559: 1558:Smoke control 1556: 1554: 1551: 1549: 1546: 1544: 1541: 1539: 1536: 1534: 1531: 1529: 1526: 1524: 1521: 1519: 1516: 1514: 1511: 1509: 1506: 1504: 1501: 1499: 1496: 1494: 1491: 1489: 1486: 1484: 1481: 1479: 1476: 1474: 1471: 1469: 1466: 1464: 1461: 1459: 1456: 1454: 1451: 1449: 1446: 1444: 1441: 1439: 1436: 1434: 1431: 1429: 1426: 1424: 1421: 1419: 1416: 1414: 1411: 1409: 1406: 1404: 1401: 1400: 1398: 1394: 1388: 1385: 1383: 1380: 1378: 1375: 1373: 1370: 1367: 1364: 1362: 1359: 1357: 1354: 1352: 1349: 1347: 1344: 1342: 1339: 1337: 1334: 1332: 1329: 1327: 1324: 1322: 1319: 1317: 1314: 1312: 1309: 1307: 1304: 1302: 1299: 1297: 1294: 1292: 1289: 1287: 1284: 1282: 1279: 1277: 1274: 1272: 1269: 1267: 1264: 1262: 1259: 1257: 1254: 1252: 1249: 1247: 1244: 1242: 1239: 1238: 1236: 1232: 1227: 1217: 1214: 1212: 1209: 1207: 1204: 1202: 1199: 1197: 1194: 1192: 1189: 1187: 1184: 1182: 1179: 1177: 1176:Heat transfer 1174: 1172: 1169: 1167: 1166:Friction loss 1164: 1162: 1159: 1157: 1154: 1152: 1149: 1147: 1144: 1142: 1139: 1137: 1136:Fire triangle 1134: 1132: 1129: 1127: 1124: 1122: 1119: 1117: 1114: 1112: 1109: 1107: 1104: 1102: 1099: 1097: 1094: 1092: 1089: 1086: 1083: 1081: 1080:Conflagration 1078: 1076: 1073: 1071: 1068: 1065: 1062: 1060: 1057: 1056: 1054: 1050: 1046: 1039: 1034: 1032: 1027: 1025: 1020: 1019: 1016: 1009: 1004: 1000: 999: 990: 987: 983: 980: 979: 976:United States 975: 974: 971: 968: 967: 963: 962: 943: 939: 933: 922: 915: 909: 894: 890: 884: 869: 865: 859: 845: 841: 835: 816: 812: 805: 799: 793: 788: 769: 762: 756: 741: 734: 727: 713: 709: 706:ABLOY, ASSA. 702: 688: 684: 677: 663: 657: 646: 640: 626: 622: 616: 602: 596: 588: 582: 578: 572: 564: 563: 558: 551: 536: 530: 522: 515: 507: 501: 492: 483: 479: 468: 465: 464: 458: 456: 450: 447: 443: 434: 431: 426: 424: 421: 417: 412: 410: 403:United States 400: 396: 390: 387: 384: 381: 378: 375: 372: 369: 366: 365: 364: 360: 358: 354: 350: 346: 332: 319: 315: 312: 302: 300: 296: 295:power failure 292: 278: 274: 272: 267: 265: 259: 250: 246: 242: 240: 236: 235:mortice latch 226: 222: 220: 219:Pullman latch 214: 211: 210: 202: 193: 191: 185: 183: 177: 175: 174:human crushes 171: 167: 163: 157: 154: 147: 137: 134: 130: 126: 122: 118: 113: 111: 107: 103: 99: 98:United States 94: 91: 87: 83: 68: 65: 64:emergency use 60: 57: 53: 51: 47: 43: 39: 36: 32: 23: 16: 2621: 2609: 2597: 2479:Piezo switch 2388:Alarm device 2355:Lock bumping 2347:Lock picking 2307:Luggage lock 2276: 2257:Bicycle lock 2241:Keycard lock 2134:Skeleton key 2086:Mortise lock 2066:Key retainer 1963:lock picking 1959:locksmithing 1911: 1899: 1798:Flame spread 1684:Fireproofing 1662:and services 1563:Smoke damper 1553:Safety glass 1488:Fire hydrant 1453:Fire curtain 1422: 1413:Booster pump 1372:Relief valve 1336:Fusible link 1126:Fire loading 1121:Fire control 1091:Deflagration 945:. Retrieved 941: 932: 908: 897:. Retrieved 895:. 2013-08-12 892: 883: 872:. Retrieved 867: 858: 847:. Retrieved 843: 834: 822:. Retrieved 815:the original 810: 798: 787: 775:. Retrieved 768:the original 755: 743:. Retrieved 739: 726: 715:. Retrieved 711: 701: 690:. Retrieved 686: 676: 665:. Retrieved 656: 639: 628:. Retrieved 624: 615: 604:. Retrieved 595: 576: 571: 562:The Guardian 560: 550: 539:. Retrieved 537:. 2019-12-31 529: 514: 505: 500: 491: 482: 451: 448: 444: 440: 427: 413: 406: 397: 394: 361: 348: 344: 342: 308: 288: 268: 264:dummy handle 263: 260: 256: 247: 243: 238: 231: 218: 215: 212: 208: 207: 186: 178: 159: 149: 145: 114: 95: 79: 61: 58: 54: 41: 37: 34: 30: 28: 15: 2575:Puzzle lock 2560:Lock Museum 2494:Reed switch 2403:Card reader 2312:Night latch 2262:Bramah lock 2155:Warded lock 1991:Key control 1518:Grease duct 1473:Fire escape 1463:Fire damper 1356:Intumescent 1301:Fire safety 1266:Fire bucket 1161:Flash point 2644:Categories 2438:Key switch 2287:Door chain 2119:Berlin key 1815:(NFPA 101) 1778:CE marking 1631:Fire drill 1234:Technology 1131:Fire point 1116:Fire class 1096:Detonation 947:2020-06-03 899:2017-03-14 874:2017-03-14 849:2017-03-14 844:ecmweb.com 717:2017-03-14 692:2020-06-04 667:2020-06-03 630:2020-06-03 606:2020-06-03 541:2020-01-01 474:References 455:SARS-CoV-2 409:Von Duprin 353:CE marking 299:fire alarm 71:Background 2418:Dual loop 2398:Car alarm 2360:Locksport 2282:Dead bolt 2277:Crash bar 2200:Time lock 2139:Smart key 2056:Key blank 1771:Standards 1700:Fire test 1528:Occupancy 1493:Fire pump 1483:Fire hose 1468:Fire door 1448:Exit sign 1423:Crash bar 1196:Pyrolysis 1191:Pool fire 1156:Flashover 1111:Explosive 1059:Backdraft 1008:Push bars 893:Dash Door 824:March 17, 399:offices. 155:, England 31:crash bar 2499:Tripwire 2370:Snap gun 2365:Slim Jim 2337:The Club 2297:Knox Box 2129:Keychain 2091:Rim lock 2061:Key code 2021:Rekeying 2011:Password 1900:Category 1864:See also 1793:EN 16034 1503:Firestop 1458:Fire cut 1181:Jet fire 1171:Gas leak 1087:(HAZMAT) 1070:Boilover 921:Archived 919:. 2014. 777:14 March 745:14 March 461:See also 418:and the 385:Security 196:Latching 129:Scotland 121:Hogmanay 42:bump bar 2180:Padlock 2124:Car key 2076:Lockset 2071:Lockrod 2046:Bitting 1912:Commons 1745:(NCEES) 1066:(BLEVE) 988:, 2012; 345:EN 1125 271:hex key 106:Chicago 76:History 2443:Keypad 1965:, and 1843:Awards 1757:(SFPE) 1751:(NFPA) 1733:(FEMA) 1696:(FSES) 583:  379:Safety 2616:Locks 2465:(PIR) 2302:Latch 1955:Locks 1834:UL 94 1788:EN 54 1739:(IFE) 1368:(PPE) 924:(PDF) 917:(PDF) 818:(PDF) 807:(PDF) 771:(PDF) 764:(PDF) 736:(PDF) 648:(PDF) 119:at a 35:panic 2628:Book 2604:Keys 2112:Keys 1783:EN 3 1763:(UL) 826:2017 779:2017 747:2017 581:ISBN 420:NFPA 237:. A 168:and 166:fire 104:in 84:in 40:or 2646:: 1961:, 1957:, 940:. 891:. 866:. 842:. 809:. 738:. 710:. 685:. 623:. 559:. 457:. 359:. 347:, 127:, 29:A 1947:e 1940:t 1933:v 1037:e 1030:t 1023:v 950:. 902:. 877:. 852:. 828:. 781:. 749:. 720:. 695:. 670:. 650:. 633:. 609:. 589:. 565:. 544:. 523:.

Index


door opening mechanism
crowd crushing
emergency use
Victoria Hall disaster
Sunderland, England
British government
United States
Iroquois Theatre fire
Chicago
Collinwood school fire
Glen Cinema disaster
Hogmanay
Paisley, Renfrewshire
Scotland
cellulose nitrate film
University of Greenwich
building codes (or regulations)
fire
emergency exits
human crushes
many historical precedents
International Building Code


mortice latch
hex key

electromagnetic lock
power failure

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