Storage of hazardous materials
Introduction
A hazardous material is any solid, liquid or gaseous substance that, due to its physical, chemical or biological characteristics, can cause harm to humans, the environment and property. Also called hazmat, an acronym from hazardous materials (in Spanish, "dangerous materials").
Classification of hazardous materials
Contenido
La Organización de las Naciones Unidas clasifica en esta forma los materiales y desechos peligrosos:[1].
Class 1: Explosives
It includes explosive substances, explosive articles and substances that produce a pyrotechnic explosive effect. It is subdivided into six subclasses:
Class 2: Gases
It refers to any type of compressed, liquefied or dissolved gas under pressure. Three subclasses are distinguished:
Class 3: Liquids
They are liquids, mixtures of liquids, or liquids containing solids in solution or suspension "Suspension (chemistry)"), which release flammable vapors "Vapor (state)") at relatively low temperatures.
These are classified according to the flash point, that is, the lowest temperature at which the liquid gives off vapors in sufficient quantity to form a flammable mixture near its surface (gasoline).
This class also includes solid materials in a molten state whose flash point is greater than 61 °C and which are delivered for transport or transported hot at a temperature equal to or greater than their flash point. Also included are desensitized liquid explosive materials (explosive liquid materials prepared in solution or suspension in water or other liquids so that they form a homogeneous liquid mixture free of explosive properties).