Portal:Hazardous Materials

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Introduction

HAZMAT Categories

A dangerous good is any solid, liquid, or gas that can harm people, other living organisms, property, or the environment. An equivalent term, used almost exclusively in the United States, is hazardous material (HAZMAT). Dangerous goods may be radioactive, flammable, explosive, toxic, corrosive, biohazardous, an oxidizer, an asphyxiant, a pathogen, an allergen, or may have other characteristics that render it hazardous in specific circumstances.

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Class 1: Explosives	Class 5.2: Organic Peroxides
Class 2.1: Flammable Gas	Class 6: Inhalation Hazard
Class 2.2: Nonflammable Gas	Class 6: Poison Gas III
Class 2.3: Poisonous Gas	Class 6: Toxic
Class 3: Flammable Liquids	Class 6.1: Poison
Class 4.1: Flammable Solids	Class 6.2: Biohazard
Class 4.2: Spontaneously Combustible	Class 7: Radioactive Substances
Class 4.3: Dangerous when Wet	Class 8: Corrosive Substances
Class 5.1: Oxidizing Agents	Class 9: Miscellaneous Substances

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A flammable liquid is a liquid with flash point of not more than 60.5°C (141°F), or any material in a liquid phase with a flash point at or above 37.8°C (100°F).