BS EN ISO 389-4:1995
Acoustics - Reference zero for the calibration of audiometric equipment - Reference levels for narrow-band masking noise

Standard No.

BS EN ISO 389-4:1995

Release Date

1995

Published By

British Standards Institution (BSI)

Status

Be replaced 1995-03

Replace By

BS EN ISO 389-4:1999

Latest

BS EN ISO 389-4:2004

Replace

BS 7113:1989

BS EN ISO 389-4:1995 history

• 1970 BS EN ISO 389-4:2004 Acoustics — Reference zero for the calibration ofaudiometric equipment — Part 8 : Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones
• 1995 BS EN ISO 389-4:1999 Acoustics - Reference zero for the calibration of audiometric equipment - Reference levels for narrow-band masking noise
• 1995 BS EN ISO 389-4:1995 Acoustics - Reference zero for the calibration of audiometric equipment - Reference levels for narrow-band masking noise
• 0000 BS 7113:1989