GB/T 4854.1-2004

Active

Acoustics--Reference zero for the calibration of audiometric equipment--Part1:Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

声学 校准测听设备的基准零级 第1部分:压耳式耳机纯音基准等效阈声压级

Standard Type
GBT
ICS
13.140
CCS
A59
Status
Active
Issue Date
2004-05-13
Implementation
2004-12-01
Centralized Committee
中国科学院
Issuing Authority
国家质量监督检验检疫总局

Application Summary AI generated

GB/T 4854.1-2004 specifies the reference equivalent threshold sound pressure levels (RETSPLs) for pure tones delivered via supra-aural earphones, establishing the zero reference level for audiometric calibration. It is applied in audiology clinics, hearing test centers, and hearing aid manufacturing to ensure consistent and accurate calibration of pure-tone audiometers used for hearing threshold measurement. This standard is critical for standardizing hearing tests across medical and occupational health settings in China.

Related Standards

GB/T 7582-2004 Acoustics--Statistical distribution of hearing thresholds as a function of age GB/Z 21233-2007 Acoustics - Assessment of noise annoyance by means of social and socio-acoustics surveys GB/T 4854.4-1999 Acoustics--Reference zero for the calibration of audiometric equipment--Part 4:Reference levels for narrow-band masking noise GB/T 4854.7-1999 Acoustics--Reference zero for the calibration of audiometric equipment--Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions GB/T 17696-1999 Acoustics--Audiometric test methods--Part 3:Speech audiometry GB/T 17249.1-1998 Acoustics--Guidelines for the design of low-noise workplaces--Noise control strategies GB/T 17250-1998 Acoustics--Measurement of noise emitted by passenger cars under conditions representative of urban driving GB/T 14366-1993 Acoustics--Determination ofoccupational noise exposure and estimation of noise-induced hearing impairment
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.