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A U.S. DOT placard mounted on a railway tank car. The placard displays UN number 1129, indicating butyraldehyde, as well as the pictogram for a flammable liquid. [27] Materials on Table 2, which is all other hazardous materials not in Table 1, [j] must display placard if 1,001 pounds (454 kg) or more of the material is loaded into a vehicle. If ...
Photograph of a placard with NA number 3082. The NA numbers (North American Numbers are assigned by the United States Department of Transportation, supplementing the larger set of UN numbers, for identifying hazardous materials. NA numbers largely duplicate UN numbers, however a selection of additional numbers are provided for materials that ...
A United States placard showing the UN number 1814, indicating potassium hydroxide solution, on a railroad tank car.. A UN number (United Nations number) is a four-digit number that identifies hazardous materials, and articles (such as explosives, flammable liquids, oxidizers, toxic liquids, etc.) in the framework of international trade and transport.
B: For domestic shipments of compressed oxygen, or refrigerated liquid oxygen the "Oxygen" placard may be used instead of a "Non-flammable Gas" placard. See §172.504(f)(7). See §172.504(f)(7). Source: United States Code of Federal Regulations, Title 49 CFR §177.848 - Segregation of hazardous materials.
n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s. entry [4]
2.1 Flammable Gas: Gases which ignite on contact with an ignition source, such as acetylene, hydrogen, and propane. 2.2 Non-Flammable Gases : Gases which are neither flammable nor poisonous. Includes the cryogenic gases/liquids (temperatures of below -100 °C) used for cryopreservation and rocket fuels, such as nitrogen , neon , and carbon ...
Paint, corrosive, flammable or Paint related material, corrosive, flammable UN 3471: 8: Hydrogen difluorides solution, n.o.s. UN 3472: 8: Crotonic acid, liquid UN 3473: 3: Fuel cell cartridges, or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment, containing flammable liquids UN 3474: 4.1
The international pictogram for flammable chemicals. Flammable placard. A flammable liquid is a liquid which can be easily ignited in air at ambient temperatures, i.e. it has a flash point at or below nominal threshold temperatures defined by a number of national and international standards organisations.