An adverse effect on a human or animal body, with severe symptoms developing rapidly and escalating quickly to a crisis. The adverse effects resulting from a single dose or exposure to asubstance.
Asphyxiation is one of the principal potential hazards of working in confined spaces.
The world's largest source of voluntary consensus standards for materials, products, systems, and services. ASTM is a resource for sampling and testing methods, health and safety aspects of materials, safe performance guidelines, effects of physical and biological agents and chemicals. The temperature at which a liquid changes to a vapor state at a given pressure. Flammable materials with low boiling points generally present special fire hazards. Breathing Zone Envelope of air surrounding a person's head.