DZ/T 0101.12-1994
Active
JJG 991-2004
Replaced
National Metrology and Inspection Regulations JJG
JJG 991-2004 Aural Impedance Audiometers
JJG 991-2004 Aural Impedance Audiometers
Basic Information
Standard Code:
JJG 991-2004
Standard Type:
National standards
Standard Status:
Replaced
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2004-09-21
Implement Date:
2004-12-21
Pages:
21 pages
Scope
This procedure applies to the initial verification, subsequent verification, and in-use inspection of impedance audiometers. If the impedance audiometer includes a pure tone audiometer component, the pure tone audiometer component shall be verified in accordance with the verification procedure for pure tone audiometers specified in JJG 388—2001.
Development Information
Superseded by the following standards
Referenced Standards
GB/T 3102.7-1993 Quantities and units—Acoustics
GB/T 3241-1998 Octave-band and fractional-octave-band filters
GB/T 4854.1-1999 Acoustics—Reference zero for the calibration of audiometric equipment—Part 1:Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
GB/T 6587-1986
GB/T 7341.1-1998 Audiometers Part 1:Pure-tone audiometers
GB/T 7342-1987 IEC provisional reference coupler for the calibration of earphones used in audiometry
GB 9706.1-1995 Medical electrical equipment—Part 1:General requirements for safety
GB/T 15953-1995 Instruments for the measurement of aural acoustic impedance/admittance
GB/T 16402-1996 Acoustics—Reference equivalent threshold sound pressure levels for pure tones and insert earphones
JJF 1059-1999
JJG 388-2001 Pure-tone Audiometers
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