GB/T 4854.4-1999 Active National standards

GB/T 4854.4-1999 Acoustics—Reference zero for the calibration of audiometric equipment—Part 4:Reference levels for narrow-band masking noise

Publish Date: 1999-03-08 Implement Date: 1999-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 4854.4-1999

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Physics and mechanics

ICS Name: Integrated acoustic measurement and noise suppression

Publish Date: 1999-03-08

Implement Date: 1999-09-01

Pages: 12 pages

Development Information

Word Count: 13 Thousand words Pages: 12 pages

Same series standard

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 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

Referenced Standards

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 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/T 7614-1987 An artificial ear of wide band type for the calibration of earphones used in audiometry GB/T 16402-1996 Acoustics—Reference equivalent threshold sound pressure levels for pure tones and insert earphones SJ/Z 9144-1987 SJ/T 10659-1995

Adopt standards

ISO 389-4:1994

Related Standards

GB/T 6882-1986 Replaced

GB/T 6882-1986 Acoustics—Determination of sound power levels of noise sources—Precision methods for anechoic and semi-anechoic rooms

Publish Date: 1986-09-13

GB/T 3223-1994 Replaced

GB/T 3223-1994 Acoustics—Free-field calibration method of underwater sound transducers

Publish Date: 1994-12-27

GB/T 15484-1995 Active

GB/T 15484-1995 Acoustics—Description and measurement of physical properties of sonic booms

Publish Date: 1995-07-03

GB/T 15485-1995 Replaced

GB/T 15485-1995 Acoustics—methods for the calculation of the articulation index of speech

Publish Date: 1995-07-03

GB/T 15611-1995 Active

GB/T 15611-1995 Acoustics—Calibration of high frequency hydrophone

Publish Date: 1995-07-03

GB/T 16402-1996 Active

GB/T 16402-1996 Acoustics—Reference equivalent threshold sound pressure levels for pure tones and insert earphones

Publish Date: 1996-05-27