Glossary

American Conference of Governmental Industrial Hygienists

A professional organization which recommends Biological Exposure Limits (BELs) and Threshold Limit Values (TLVs) for toxic substances.

Advisory Committee on Genetic Manipulation (United Kingdom)

Accreditation Council for Graduate Medical Education

Air Changes per Hour

American Concrete Institute

Alloy Casting Institute

Crystals having the shape of a needle.

Atomicity, Consistency, Isolation, and Durability (GAMP)

A compound of an electronegative element or radical with hydrogen; it form salts by replacing all or part of the hydrogen with an electropositive element or radical. Or, a hydrogen-containing substance that when dissolved in water dissociates to produce one or more hydrogen ions (H+). Acids cause irritation, burns, or more serious damage to tissue, depending on the strength of the acid, which is measured by its pH

Substance whose chemical reaction characteristic is to establish new bonds by the acceptance of electron pairs.

Injection of an acid into a liquid stream to make it less alkaline (pH adjustment).

(ASTM A 380) Process that utilizes nitric-hydrofluoric acid solution, and used by fabricators of stainless steel equipment to remove both metallic contamination, and welding and heat-treating scales. Its use should be carefully controlled and is not recommended for descaling sensitized austenitic stainless steels or hardened martensitic stainless steels or where it can come in contact with carbon steel parts, assemblies, equipment, and systems.

An abnormal condition characterized by reduced alkalinity of the blood and body tissues.

American Council of Independent Laboratories

Criteria established based on possible impact to product quality, outside the operating range (acceptance criteria). A documented response is usually required.(also see: Action Point)

Advisory Committee of Immunization Practices (CDC)

Alternate Concentration Limit

Analytical Chemistry Laboratory

American Clinical Laboratory Association

Polyacrylic Rubber

American College of Medical Physics

Acetonitrile

Acceptable Carry-Over Limit

American College of Physicians