scope:

This Standard specifies procedures and requirements for air conduction pure tone threshold audiometry without masking that are applicable to individuals whose hearing sensitivity might be adversely affected by occupational noise exposure and presents techniques for automatic recording and manual audiometry. The procedures and requirements presented in this International standard are restricted to air conduction pure tone threshold audiometry by earphones; other audiometric techniques, such as bone conduction pure tone threshold audiometry, masking and speech audiometry, are not specified. Techniques for computer controlled audiometry are not specified, but shall elicit results equivalent to manual audiometry. The specifications in this International Standard are not intended for clinical purposes nor are they applicable without modification in other circumstances, such as at schools or at health service institutes.