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"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 propane tank car after a fire, the HAZMAT 1075 symbol can be seen in red as a warning of the danger posed by the gas. A gas is a substance which (a) at 50 °C (122 °F) has a vapor pressure greater than 300 kPa (43.51 PSI) or
Each person who offers transportation of hazardous materials must describe the material on accompanied shipping papers. The papers must include— an identification number; a proper shipping name, identified in the Hazardous Materials Table; the hazard class; the packing group, identified in Roman numerals; the total quantity of hazardous materials
Note 2: A liquid in Division 6.1 meeting criteria for Packing Group I, Hazard Zones A or B stated in paragraph (a)(2) of this section is a material poisonous by inhalation subject to the additional hazard communication requirements in 49CFR 172.203(m)(3), 49CFR 172.313 and Table 1 of 49CFR 172.504(e) of this subchapter.
This includes employees who are exposed (or potentially exposed) to hazardous substances (including hazardous waste) and who are engaged in one of the following operations as specified by OSHA regulations 1910.120(a)(1)(i-v) and 1926.65(a)(1)(i-v): [2] Cleanup operations required by a governmental body (federal, state, local or other) involving ...
O: Indicates that these materials may not be loaded, transported or stored together in the same transport vehicle or storage facility during the course of transportation, unless separated in a manner that, in the event of leakage from packages under conditions normally incident to transportation, commingling of hazardous materials would not occur.