Acoustics Reference zero for the calibration of audiometric equipment
€49.00
Acoustics Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance
€152.00
€75.00
Acoustics Guidelines for noise control in offices and workrooms by means of acoustical screens
€113.00
Acoustics Determination of sound immission from sound sources placed close to the ear
Method of test for estimating the risk of hearing handicap due to noise exposure
€172.00
Specification for pure tone air conduction threshold audiometry for hearing conservation purposes
€201.00
Specification for threshold of hearing by air conduction as a function of age and sex for otologically normal persons
Specification for a standard reference zero for the calibration of pure tone bone conduction audiometers
Specification for reference levels for narrow-band masking noise
Specification for artificial mastoids for the calibration of bone vibrators used in hearing aids and audiometers
Acoustics. Description and measurement of environmental noise. Investigation of complaints against noise in inhabited areas.
€70.50
Acoustics. Reference zero for the calibration of pure tone audiometers by air conduction.
€44.50
