| Abstract from DBPedia | Dangerous goods, abbreviated DG, are substances that when transported are a risk to health, safety, property or the environment. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials (syllabically abbreviated as HAZMAT or hazmat). An example for dangerous goods is hazardous waste which is waste that has substantial or potential threats to public health or the environment. Hazardous materials are often subject to chemical regulations. Hazmat teams are personnel specially trained to handle dangerous goods, which include materials that are radioactive, flammable, explosive, corrosive, oxidizing, asphyxiating, biohazardous, toxic, pathogenic, or allergenic. Also included are physical conditions such as compressed gases and liquids or hot materials, including all goods containing such materials or chemicals, or may have other characteristics that render them hazardous in specific circumstances. Dangerous goods are often indicated by diamond-shaped signage on the item (see NFPA 704), its container, or the building where it is stored. The color of each diamond indicates its hazard, e.g., flammable is indicated with red, because fire and heat are generally of red color, and explosive is indicated with orange, because mixing red (flammable) with yellow (oxidizing agent) creates orange. A nonflammable and nontoxic gas is indicated with green, because all compressed air vessels were this color in France after World War II, and France was where the diamond system of hazmat identification originated.危険物（きけんぶつ、英語: Dangerous goods）とは、対象に危険を及ぼす可能性を秘めた本質を持つ物である。文脈により危険を及ぼす対象及び危険を及ぼす主体の物の範囲が異なる。 対象としては、人間・動物・植物、環境（生態）、物体（物質・物品）、財産等が該当する場合がある。一方主体の物としては、物質（化学物質など）や物品（品物・製品・成形物・機器・器具）といったものが該当する場合がある。 また、文脈が想定している危険が実際に対象に悪い影響を与える機会・状況により危険物とされる範囲が異なる。 (Source: http://dbpedia.org/resource/Dangerous_goods) |
