Professional organization responsible for creation of the TLV consensus exposure guidelines. Acid An organic or inorganic compound with a pH of less than 7. Acidic materials are corrosive to human tissue. Acute Toxicity Refers to adverse effects suffered as the result of a short, one-time exposure to toxic materials. It occurs within a relatively short period.
Exposure is measured in seconds, minutes, or hours relative to inhalation or skin absorption.
Adsorb Collection of gas or liquid molecules on the surface of another material. For sampling of most organic vapors, activated charcoal is a good adsorber. Base Chemical compounds that have a pH of greater then 7. Bases are also referred to as alkalis or caustic materials and can be corrosive to human tissue. The temperature at which the vapor pressure of a liquid is equivalent to the surrounding atmospheric pressure and the liquid rapidly becomes a vapor.