Show Class 1 - ExplosivesDivision 1.1 Explosives which have a mass explosion hazard Division 1.2 Explosives which have a projection hazard but not a mass explosion hazard Division 1.3 Explosives which have a fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard Division 1.4 Explosives which present no significant blast hazard Division 1.5 Very insensitive explosives with a mass explosion hazard Division 1.6 Extremely insensitive articles which do not have a mass explosion hazard Class 2 - GassesDivision 2.1 Flammable gases Division 2.2 Non-flammable, non-toxic* gases Division 2.3 Toxic* gases Class 3 - Flammable liquids (and Combustible liquids [U.S.])Class 4 - Flammable solids; Substances liable to spontaneous combustion; Substances which, on contact with water, emit flammable gasesDivision 4.1 Flammable solids, self-reactive substances and solid desensitized explosives Division 4.2 Substances liable to spontaneous combustion Division 4.3 Substances which in contact with water emit flammable gases Class 5 - Oxidizing substances and Organic peroxidesDivision 5.1 Oxidizing substances Division 5.2 Organic peroxides Class 6 - Toxic* substances and Infectious substancesDivision 6.1 Toxic* substances Division 6.2 Infectious substances Class 7 - Radioactive materialsClass 8 - Corrosive substancesClass 9 - Miscellaneous dangerous goods/hazardous materials and articlesAccess an expanded guide to the DOT Hazmat Classes Access the Emergency Response Guide (ERG) and App *The words “poison” or “poisonous” are synonymous with the word “toxic”.[1] Have you ever seen a truck, railcar, container or large tanks at a tank farm and wondered what types of chemicals it was transporting or storing? The answer can be found in its UN numbers and hazmat placards. Located on the back or sides of trailers or other containers, UN numbers (or UN IDs) are four-digit numbers ranging from 0004-3534 that identify dangerous goods or hazardous substances — such as explosives, flammable liquids, or toxic substances — in the framework of international transport. These numbers are assigned by the United Nations (UN) Committee of Experts on the Transport of Dangerous Goods, and must be listed on the Material Safety Data Sheet (MSDS) of each shipment. (Goods that aren’t classified or regulated by the UN are given four-digit North American (NA) numbers ranging from 8000-9279. These numbers are designated by the United States Department of Transportation (DOT).) What Are Hazmat Placards?In addition to a UN number, the DOT requires cargo to carry Hazmat placards that help shippers determine its class, division, and compatibility group. Similar to road or construction signs, these diamond-shaped hazmat placards alert the public that potentially hazardous materials are being hauled, as well as inform emergency responders which chemicals are present in case of an accident. Even if members of the public or first responders are unaware of exactly which materials are on board, the presence of hazmat placards lets them know that they should proceed with caution. With rare exceptions, companies that transport hazardous materials without the use of DOT hazmat placards are at risk for stiff fines and other penalties. UN Hazmat Sign Components and ClassificationsIt’s vital that anyone who works with or around hazardous materials can properly identify the various aspects of each hazmat placard, as well as the various classifications that each one represents. CLASSIFICATIONSHazmat warning placards are broken down into nine different classifications, along with their divisions. Each class number is found at the bottom of the sign, while the division number can be found in the middle. Class 1 — Explosive Materials1.1: Products with the potential to create a mass explosion Class 2 — Gases2.1: Flammable gases Class 3 — Flammable and Combustible LiquidsClass 4 — Flammable Materials4.1: Flammable solids Class 5 — Oxidizer and Organic Peroxide5.1: Oxidizing substances Class 6 — Poisons6.1: Toxic substances Class 7 — Radioactive MaterialsClass 8 — Corrosive MaterialsClass 9 — Miscellaneous MaterialsCOMPONENTSEach hazmat sign has up to six main parts:
Rules for Placement
In all, carriers must display at least four placards in areas where the view isn’t obstructed. Some carriers add extra signs on each side of the truck cab for additional visibility. Choose Your ChemicalAcetic AcidAcetic Acid Handling Design, Loading, and Installation.Acetic AnhydrideAcetic Anhydride Handling Design, Loading, and Installation.AcetonitrileAcetonitrile (CH3CN) Handling Design, Loading, and Installation.AcroleinAcrolein (C3H40) Handling Design, Loading, and Installation.Acrylic AcidAcrylic Acid Handling Design, Loading, and Installation.AcrylonitrileAcrylonitrile (C3H3N) Handling Design, Loading, and Installation.Aluminum ChlorideAluminum Chloride Handling Design, Loading, and Installation.Aluminum SulfateAluminum Sulfate Handling Design, Loading, and Installation.AmmoniaAmmonia (NH3) handling design and loading Ammonium HydroxideAmmonium Hydroxide handling design and loadingAmmonium NitrateAmmonium Nitrate handling design and loadingAnilineAniline handling design and loadingBenzeneBenzene handling design and loadingBenzyl ChlorideBenzyl Chloride handling design and loadingBromotri-fluoromethaneBromotri-fluoromethane handling design and loadingButadieneButadiene handling design and loadingCausticCaustic handling design and loadingChlorineChlorine handling design and loadingChloroformChloroform handling design and loadingChlorosulfonic AcidChlorosulfonic Acid handling design and loadingDiethylene GlycolDiethylene Glycol handling design and loadingDodecylbenzene Sulfonic AcidDodecylbenzene Sulfonic Acid handling design and loadingEthanolEthanol handling design and loadingEthyl ChlorideEthyl Chloride handling design and loadingEthyleneEthylene handling design and loadingEthylene DichlorideEthylene Dichloride handling design and loadingEthylene OxideEthylene Oxide handling design and loadingEthylene GlycolEthylene Glycol handling design and loadingFerric ChlorideFerric Chloride handling design and loadingFerrous ChlorideFerrous Chloride handling design and loadingHexaneHexane handling design and loadingHydrochloric AcidHydrochloric Acid handling design and loadingHydrofluoric AcidHydrofluoric Acid handling design and loadingHydrofluorosilicic AcidHydrofluorosilicic Acid handling design and loadingHydrogen PeroxideHydrogen Peroxide (H2O2) Handling Design, Loading, and Installation.Hypochlorous AcidHypochlorous Acid Handling Design, Loading, and Installation.Isopropyl AcetateIsopropyl Acetate Handling Design, Loading, and Installation.Liquid ArgonLiquid Argon Handling Design, Loading, and Installation.Liquid NitrogenLiquid Nitrogen Handling Design, Loading, and Installation.Liquid OxygenLiquid Oxygen Handling Design, Loading, and Installation.Maleic AnhydrideMaleic Anhydride (C4H2O3) Handling Design, Loading, and Installation.MethanolMethanol handling design and loadingMethyl ChlorideMethyl Chloride handling design and loadingMethyl IsocyanateMethyl Isocyanate handling design and loadingMethyl Ethyl KetoneMethyl Ethyl Ketone handling design and loadingMethyl MethacrylateMethyl Methacrylate Handling Design, Loading, and Installation.Molten SulphurMolten sulphur handling design and loadingMDIMethylene Diphenyl Diisocyanate handling design and loadingNitric AcidNitric Acid handling design and loadingOleumOleum handling design and loadingPhenolPhenol handling design and loadingPhosphoric AcidPhosphoric Acid handling design and loadingPhosphorus TrichloridePhosphorus Trichloride handling design and loadingPolypropylenePolypropylene handling design and loadingRenewable DieselRenewable Diesel handling design and loadingSodium CyanideSodium Cyanide handling design and loadingSodium HypochloriteSodium Hypochlorite handling design and loadingSodium HydroxideSodium Hydroxide handling design and loadingStyrene MonomerStyrene Monomer handling design and loadingSulfuric AcidSulfuric acid handling design and loadingSulfur DioxideSulfur Dioxide handling design and loadingTitanium TetrachlorideTitanium Tetrachloride (TiCl4) handling design and loadingTolueneToluene handling design and loadingTurpentineTurpentine handling design and loadingUANUrea Ammonium Nitrate Solution handling design and loadingVinyl AcetateVinyl Acetate handling design and loadingVinyl ChlorideVinyl Chloride handling design and loadingXyleneXylene handling design and loadingZinc ChlorideZinc Chloride handling design and loadingDon’t see a chemical?; We’re probably still writing and gathering content. We specialize in loading all industrial bulk chemicals How well to
you know your GHS pictograms? What is a hazard placard?Placards warn the people of the presence of hazards while they're driving or near large quantities of hazmat being transported. They inform emergency responders - if shipping papers aren't available at the scene of an accident, a placard may be the only way responders know what materials are involved in the accident.
What are the 4 types of hazardous materials?Class 1: Explosives. Class 2: Gases. Class 3: Flammable Liquids. Class 4: Flammable Solids or Substances.
What is a placard used for?A placard is a notice installed in a public place, like a small card, sign, or plaque. It can be attached to or hung from a vehicle or building to indicate information about the vehicle operator or contents of a vehicle or building. It can also refer to paperboard signs or notice carried by picketers or demonstrators.
Where is the hazard class identification number is displayed on DOT placards?CLASSIFICATIONS. Hazmat warning placards are broken down into nine different classifications, along with their divisions. Each class number is found at the bottom of the sign, while the division number can be found in the middle.
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