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In the absence of LC 50 data on the poisonous (toxic) constituent substances, the mixture may be assigned a packing group and hazard zone based on simplified threshold toxicity tests. When these threshold tests are used, the most restrictive packing group and hazard zone must be determined and used for the transportation of the mixture.
Confusing. Trivial. Useless. Laughable. Inconsistent. The road rage over DMV test questions continues for drivers 70 and older.
An aerosol must be assigned to Division 2.1 if it is deemed flammable in accordance with the appropriate tests of the UN Manual of Tests and Criteria for flammability. Division 2.2: Non-Flammable, Non-Toxic Gas This division includes compressed gas, liquefied gas, pressurized cryogenic gas, compressed gas in solution, asphyxiant gas and ...
The United States Department of Transportation requires all drivers with a commercial driver's license to pass a periodic physical examination every two years before renewal and to be at least 21 years old to operate in interstate commerce or to transport hazardous materials requiring the driver to place placards on the vehicle, but allow ...
Study guides and strategies: Older drivers have a few tips for those who must take the dreaded California DMV renewal test, with all its 'obscure and ridiculous' questions
"Dangerous goods" (also known as "hazardous materials" or "HAZMAT" in the United States) may be a pure chemical substance (e.g. TNT, nitroglycerin), mixtures (e.g. dynamite, gunpowder) or manufactured articles (e.g. ammunition, fireworks). The transport hazards that they pose are grouped into nine classes, which may be subdivided into divisions ...
A commercial driver's license is required to operate a tractor-trailer for commercial use. A commercial driver's license (CDL) is a driver's license required in the United States to operate large and heavy vehicles (including trucks, buses, and trailers) or a vehicle of any size that transports hazardous materials or more than 15 passengers (including the driver).
Hazardous Materials Class 4.3 : Dangerous when Wet 4.3 Dangerous when Wet : Solid substances that emit a flammable gas when wet or react violently with water ( sodium , calcium , potassium , calcium carbide ).