ABSTRACT
Dangerous chemical substances and chemical preparations have one or more hazardous properties, from which most dangerous are explosiveness, flammability and toxicity. The danger arising from the properties of chemical substances and chemical preparations can take different forms, such as particularly an explosion, fire, toxic effects on organisms, contamination of the environment. When handling chemical substances and chemical preparations, there may be adverse events, which have different consequences and impacts to the human health and life, livestock, the environment and property in buildings and facilities and their surroundings. Everyone who handled with dangerous chemical substances, must necessary know their characteristics, and must also be able to analyze and evaluate the associated hazards.
