ASA
abbreviation
1.1
- Advertising Standards Authority
1.2
- Amateur Swimming Association业余游泳协会。
1.3
- American Standards Association (especially in film-speed specification)美国标准协会（尤用于表示胶片感光度）：
colour film from 50 to 400 ASA
按美国标准协会标准感光度从50至400的彩色胶卷.