{"operation":"document","citation":"ERG 2024, Table 3: Large Spill Protective Action Distances","title":"Table 3: Large Spill Protective Action Distances","source_type":"guidance","agency":"U.S. DOT / Transport Canada / SICT","status":"guidance","official":true,"published_on":"2024-04-04","effective_on":null,"summary":"Official ERG2024 table 3: large spill protective action distances guidance, pages 342-345.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-erg-2024-green-table-3.json","markdown":"https://regulus.evalyn.ai/document/phmsa-erg-2024-green-table-3.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-erg-2024-green-table-3","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2024-04/ERG2024-Eng-Web-a.pdf#page=342","body":"HOW TO USE TABLE 3 – INITIAL ISOLATION AND PROTECTIVE ACTION\nDISTANCES FOR LARGE SPILLS FOR DIFFERENT QUANTITIES OF\nSIX COMMON TIH (PIH IN THE US) GASES\nTable 3 lists Toxic Inhalation Hazard (TIH) materials that may be more commonly\nencountered.\nThe selected materials are:\n•\n•\n•\n•\n•\n•\nUN1005 - Ammonia, anhydrous\nUN1017 - Chlorine\nUN1040 - Ethylene oxide and UN1040 – Ethylene oxide with nitrogen\nUN1050 - Hydrogen chloride, anhydrous and UN2186 - Hydrogen chloride,\nrefrigerated liquid\nUN1052 - Hydrogen fluoride, anhydrous\nUN1079 - Sulfur dioxide/Sulphur dioxide\nThe materials are presented in numerical order of ID number and provide Initial Isolation\nand Protective Action Distances FOR LARGE SPILLS (more than 208 liters or 55 US\ngallons) involving different container types (therefore different volume capacities, see\nbelow) for day time and night time situations and different wind speeds.\n•\n•\n•\n•\n•\nRail tank car: 80 000 kg (176 370 lbs.)\nHighway tank truck or trailer: 20 000 – 25 000 kg (44 092 – 55 116 lbs.)\nAgricultural nurse tank: 3785 L (1000 gallons)\nSmall cylinder: 72 L (19 gallons)\nTon cylinder: 757 - 1135 L (200 - 300 gallons)\nEstimating Wind Speed from Environmental Clues\nmph km/h Wind\nDescription Specifications\n< 6 < 10 Low wind Wind felt on face; leaves rustle; ordinary vane\nmoved by wind\n6 - 12 10 - 20 Moderate wind Raises dust, loose paper; small branches\nare moved\n> 12 > 20 High wind Large branches in motion; whistling heard in\ntelephone wires; umbrellas used with difficulty\n(Data taken from the Beaufort Wind Scale has been reworked in order to create 3 categories of wind\nspeed: Low, Moderate and High)\nPage 340\n\nTRANSPORT\nCONTAINER UN1005 Ammonia, anhydrous / Anhydrous ammonia: Large Spills\nRail tank car 300 (1000) 1.6 (1.0) 1.2 (0.8) 1.0 (0.6) 4.1 (2.6) 2.1 (1.3) 1.3 (0.8)\nHighway tank truck or trailer 150 (500) 0.8 (0.5) 0.5 (0.3) 0.4 (0.3) 1.8 (1.1) 0.7 (0.4) 0.6 (0.4)\nAgricultural nurse tank 60 (200) 0.5 (0.3) 0.3 (0.2) 0.3 (0.2) 1.4 (0.9) 0.3 (0.2) 0.3 (0.2)\nMultiple small cylinders 30 (100) 0.3 (0.2) 0.2 (0.1) 0.1 (0.1) 0.7 (0.5) 0.3 (0.2) 0.2 (0.1)\nLow wind\n(< 6 mph =\n<\n10 km/h)\nModerate wind\n(6-12 mph =\n10 - 20 km/h)\nHigh wind\n(> 12 mph =\n> 20 km/h)\nModerate wind\n(6-12 mph =\n10 - 20 km/h)\nHigh wind\n(> 12 mph =\n> 20 km/h)\nMeters (Feet) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles)\nHighway tank truck\nor trailer TRANSPORT\nCONTAINER UN1017 Chlorine: Large Spills\nRail tank car 1000 (3000) 9.6 (6.0) 6.3 (3.9) 5.1 (3.2) 11.0+ (7.0+) 8.9 (5.6) 6.5 (4.1)\n600 (2000) 5.6 (3.5) 3.3 (2.1) 2.5 (1.6) 6.4 (4.0) 4.7 (2.9) 3.8 (2.4)\nMultiple ton cylinders 300 (1000) 1.9 (1.2) 1.3 (0.8) 1.0 (0.6) 3.5 (2.2) 2.3 (1.4) 1.3 (0.8)\nMultiple small cylinders or\nsingle ton cylinder 150 (500) 1.3 (0.9) 0.7 (0.5) 0.5 (0.3) 2.4 (1.5) 1.2 (0.8) 0.6 (0.4)\nPage 341\nTABLE 3 - INITIAL ISOLATION AND PROTECTIVE ACTION DISTANCES FOR LARGE SPILLS FOR DIFFERENT QUANTITIES\nOF SIX COMMON TIH (PIH IN THE US) GASES\nFirst ISOLATE\nin all Directions\nThen PROTECT persons Downwind during\nDAY NIGHT\nLow wind\n(< 6 mph =\n< 10 km/h)\nTABLE 3\n\"+\" means distance can be larger in certain atmospheric conditions\n\nPage 342\nTABLE 3 - INITIAL ISOLATION AND PROTECTIVE ACTION DISTANCES FOR LARGE SPILLS FOR DIFFERENT QUANTITIES\nOF SIX COMMON TIH (PIH IN THE US) GASES\nFirst ISOLATE\nin all Directions\nThen PROTECT persons Downwind during\nDAY NIGHT\nModerate wind\n(6-12 mph =\n10 - 20 km/h)\nLow wind\n(< 6 mph =\n< 10 km/h)\nLow wind\n(< 6 mph =\n<\n10 km/h)\nHigh wind\n(> 12 mph =\n> 20 km/h)\nModerate wind\n(6-12 mph =\n10 - 20 km/h)\nHigh wind\n(> 12 mph =\n> 20 km/h)\nMeters (Feet) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles)\nTRANSPORT\nCONTAINER\nUN1040 Ethylene oxide: Large Spills\nUN1040 Ethylene oxide with nitrogen: Large Spills\nRail tank car 200 (600) 1.5 (1.0) 0.8 (0.5) 0.7 (0.4) 3.0 (1.8) 1.4 (0.9) 0.8 (0.5)\nHighway tank truck or trailer 100 (300) 0.9 (0.6) 0.5 (0.3) 0.4 (0.3) 2.0 (1.3) 0.7 (0.4) 0.4 (0.3)\nMultiple small cylinders\nor single ton cylinder 30 (100) 0.4 (0.3) 0.2 (0.1) 0.1 (0.1) 0.8 (0.5) 0.3 (0.2) 0.2 (0.1)\nTRANSPORT\nCONTAINER\nUN1050 Hydrogen chloride, anhydrous: Large Spills\nUN2186 Hydrogen chloride, refrigerated liquid: Large Spills\nRail tank car 500 (1500) 3.7 (2.3) 2.0 (1.3) 1.7 (1.1) 9.7 (6.1) 3.3 (2.1) 2.2 (1.4)\nHighway tank truck\nor trailer 200 (600) 1.5 (0.9) 0.8 (0.5) 0.6 (0.4) 3.7 (2.3) 1.5 (0.9) 0.8 (0.5)\nMultiple ton cylinders 30 (100) 0.4 (0.3) 0.2 (0.1) 0.1 (0.1) 1.0 (0.6) 0.3 (0.2) 0.1 (0.1)\nMultiple small cylinders or\nsingle ton cylinder 30 (100) 0.3 (0.2) 0.2 (0.1) 0.1 (0.1) 0.9 (0.6) 0.3 (0.2) 0.2 (0.1)\n\nTRANSPORT\nCONTAINER UN1052 Hydrogen fluoride, anhydrous: Large Spills\nRail tank car 500 (1500) 3.4 (2.1) 2.1 (1.3) 1.8 (1.1) 6.4 (4.0) 3.0 (1.9) 1.9 (1.2)\nHighway tank truck or trailer 200 (700) 2.0 (1.2) 1.0 (0.7) 0.9 (0.6) 3.6 (2.3) 1.5 (1.0) 0.9 (0.6)\nLow wind\n(< 6 mph =\n<\n10 km/h)\nModerate wind\n(6-12 mph =\n10 - 20 km/h)\nHigh wind\n(> 12 mph =\n> 20 km/h)\nModerate wind\n(6-12 mph =\n10 - 20 km/h)\nHigh wind\n(> 12 mph =\n> 20 km/h)\nMeters (Feet) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles) Kilometers (Miles)\nMultiple small cylinders or\nsingle ton cylinder 200 (600) 3.1 (1.9) 1.5 (0.9) 1.1 (0.7) 5.6 (3.5) 2.4 (1.5) 1.5 (0.9)\nMultiple small cylinders\nor single ton cylinder 100 (300) 0.8 (0.5) 0.4 (0.2) 0.3 (0.2) 1.7 (1.1) 0.5 (0.3) 0.3 (0.2)\nTRANSPORT\nCONTAINER UN1079 Sulfur dioxide / Sulphur dioxide: Large Spills\nRail tank car 1000 (3000) 11.0+ (7.0+) 11.0+ (7.0+) 6.9 (4.3) 11.0+ (7.0+) 11.0+ (7.0+) 9.6 (6.0)\nHighway tank truck\nor trailer 1000 (3000) 11.0+ (7.0+) 6.0 (3.8) 5.0 (3.3) 11.0+ (7.0+) 7.9 (5.1) 6.0 (3.9)\nMultiple ton cylinders 500 (1500) 5.2 (3.3) 2.2 (1.4) 1.7 (1.1) 7.4 (4.3) 4.0 (2.5) 2.7 (1.7)\nPage 343\nTABLE 3 - INITIAL ISOLATION AND PROTECTIVE ACTION DISTANCES FOR LARGE SPILLS FOR DIFFERENT QUANTITIES\nOF SIX COMMON TIH (PIH IN THE US) GASES\nFirst ISOLATE\nin all Directions\nThen PROTECT persons Downwind during\nDAY NIGHT\nLow wind\n(< 6 mph =\n< 10 km/h)\nTABLE 3\n\"+\" means distance can be larger in certain atmospheric conditions","truncated":false,"body_characters":6199}