{"operation":"document","citation":"ERG 2024 Guide 143","title":"Guide 143: Oxidizers (Unstable)","source_type":"guidance","agency":"U.S. DOT / Transport Canada / SICT","status":"guidance","official":true,"published_on":"2024-04-04","effective_on":null,"summary":"ERG2024 response Guide 143: Oxidizers (Unstable).","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-erg-2024-guide-143.json","markdown":"https://regulus.evalyn.ai/document/phmsa-erg-2024-guide-143.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-erg-2024-guide-143","source_url":"https://www.phmsa.dot.gov/erg/guide?number=143","body":"GUIDE\n143\nOxidizers (Unstable)\nPOTENTIAL HAZARDS\nFIRE OR EXPLOSION\n•\nMay explode from friction, heat or contamination.\n•\nThese substances will accelerate burning when involved in a fire.\n•\nMay ignite combustibles (wood, paper, oil, clothing, etc.).\n•\nSome will react explosively with hydrocarbons (fuels).\n•\nContainers may explode when heated.\n•\nRunoff may create fire or explosion hazard.\n•\n•\n•\n•\nHEALTH\nTOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe\ninjury, burns or death.\nFire may produce irritating and/or toxic gases.\nToxic fumes or dust may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.).\nRunoff from fire control or dilution water may cause environmental contamination.\nPUBLIC SAFETY\nCALL 911. Then call emergency response telephone number on shipping paper. If shipping paper\nnot available or no answer, refer to appropriate telephone number listed on the inside back cover.\nKeep unauthorized personnel away.\nStay upwind, uphill and/or upstream.\nVentilate closed spaces before entering, but only if properly trained and equipped.\n•\n•\n•\n•\nPROTECTIVE CLOTHING\n•\nWear positive pressure self-contained breathing apparatus (SCBA).\n•\nWear chemical protective clothing that is specifically recommended by the manufacturer when there is\nNO RISK OF FIRE.\n•\nStructural firefighters' protective clothing provides thermal protection but only limited chemical protection.\nEVACUATION\nImmediate precautionary measure\n•\nIsolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters\n(75 feet) for solids.\nSpill\n•\n•\nFor highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.\nFor non-highlighted materials: increase the immediate precautionary measure distance, in the downwind\ndirection, as necessary.\nFire\n•\nIf tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all\ndirections; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.\nPage 216\nERG 2024\n\nOxidizers (Unstable)\nGUIDE\n143\nEMERGENCY RESPONSE\nFIRE\nSmall Fire\n•\nUse water. Do not use dry chemicals or foams. CO2 or Halon® may provide limited control.\nLarge Fire\n•\nFlood fire area with water from a distance.\n•\nDo not move cargo or vehicle if cargo has been exposed to heat.\n•\nIf it can be done safely, move undamaged containers away from the area around the fire.\n•\n•\nDo not get water inside containers: a violent reaction may occur.\nFire Involving Tanks, Rail Tank Cars or Highway Tanks\nCool containers with flooding quantities of water until well after fire is out.\n•\nDike runoff from fire control for later disposal.\n•\nALWAYS stay away from tanks in direct contact with flames.\n•\nFor massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw\nfrom area and let fire burn.\nSPILL OR LEAK\n•\nKeep combustibles (wood, paper, oil, etc.) away from spilled material.\n•\nDo not touch damaged containers or spilled material unless wearing appropriate protective clothing.\n•\nUse water spray to reduce vapors or divert vapor cloud drift.\n•\nPrevent entry into waterways, sewers, basements or confined areas.\nSmall Spill\n•\nFlush area with large amounts of water.\nLarge Spill\n•\nDO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST.\nFIRST AID\nRefer to the “General First Aid” section.\nSpecific First Aid:\n•\nContaminated clothing may be a fire risk when dry.\nIn Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product.\nPlease consult the shipping paper and/or the \"ERAP\" section.\nERG 2024\nPage 217","truncated":false,"body_characters":3656}