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  2. Column: For drivers 70 and older, the road rage over DMV test ...

    www.aol.com/news/column-drivers-70-older-road...

    Confusing. Trivial. Useless. Laughable. Inconsistent. The road rage over DMV test questions continues for drivers 70 and older.

  3. HAZMAT Class 6 Toxic and infectious substances - Wikipedia

    en.wikipedia.org/wiki/HAZMAT_Class_6_Toxic_and...

    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.

  4. UN Recommendations on the Transport of Dangerous Goods

    en.wikipedia.org/wiki/UN_Recommendations_on_the...

    "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 ...

  5. HAZMAT Class 3 Flammable liquids - Wikipedia

    en.wikipedia.org/wiki/HAZMAT_Class_3_Flammable...

    Either the test method specified in ASTM 4206 or the ... United States Code of Federal Regulations, Title 49 CFR §177.848 - Segregation of hazardous materials ...

  6. Column: Older drivers reveal strategies for passing that ...

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    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

  7. List of NA numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_NA_numbers

    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 are not covered by UN numbers as a hazardous ...

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