A

acre-foot: acre ft

acutely hazardous material: AHM

Advanced Notice of Proposed Rule Making: ANPRM

aggressiveness index: AI

alkylbenzene sulfonate: ABS

alternating current: ac

American Association of Cost Engineers: AACE

American Association of State Highway and Transportation Officials: AASHTO

American Chemical Society: ACS

American Concrete Institute: ACI

American Gas Association: AGA

American Institute of Chemical Engineers: AIChE

American Institute of Electrical Engineers: AIEE

American National Standards Institute: ANSI

American Public Health Association: APHA

American Public Works Association: APWA

American Society of Civil Engineers: ASCE

American Society of Heating, Refrigeration and Air Conditioning: ASHRAE

American Society of Mechanical Engineers: ASME

American Society for Testing and Materials: ASTM

American Water Works Association: AWWA

American Water Works Association Research Foundation: AWWARF

Americans with Disabilities Act: ADA

ampere: A

ampere-hour: Ah

answer: ans.

area: A

asbestos cement: A-C

asbestos-containing material: ACM

assimilable organic carbon: AOC

Association of Metropolitan Water Agencies: AMWA

Association of State Drinking Water Administrators: ASDWA

Association of State Sanitary Engineers: ASSE

atomic absorption spectrophotometry: AAS

atomic emission spectroscopy: AES

atomic weight: at wt

available filter head: AFH

avoirdupois: avdp or avoir

B

background organic matter: BOM

barrel: bbl or brl

base (as the length of a triangle): B or b

becquerel (metric equivalent of curie): Bq

benzene-toluene-xylene (the volatiles measured in gasoline): BTX

best-available technology: BAT

billion: means 10 ⁹ to Americans, 10 ¹² to Europeans

billion electronvolts: BeV

billion gallons: bil gal

billion gallons per day: bgd

biochemical oxygen demand or biological oxygen demand: BOD

biodegradable organic...