BS 4009:1975
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Specification for an artificial mastoid for the calibration of bone vibrators used in hearing aids and audiometers
Available format(s)
Hardcopy
Superseded date
28-02-1991
Language(s)
English
Published date
31-07-1975
Publisher
Basic features of an artificial mastoid for objective calibration of bone vibrators used in hearing aids and audiometers.
Important note : Users cannot be edited or removed once added to your Multi user PDF.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.