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GB/T 4854.1-2004Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones (English PDF)

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

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Issued by

State Administration of Quality Supervision, Inspection and Quarantine

Level / Type

National · Recommended

Issue date

May 13, 2004

Implementation date

December 1, 2004

Scope

GB/T 4854.1-2004 is the English-translated version of 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.

GB/T 4854.1-2004 — Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

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Document preview — GB/T 4854.1-2004

National Standard of the People's Republic of China

ICS: 13.140
Classification: A 59
Replacing: GB/T 4854.1-1999

Issued by: State Administration of Quality Supervision, Inspection and Quarantine

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

This standard specifies the pure tone air conduction audiometry hearing Ae -level indexing benchmark zero. This section presents information that is subject to GB/T 7342 uz prescribed measuring chamber together two standard models without an earphone response as well as in line with GB/T 7614 on the side of the artificial ear specified amount (4. 3 forth) other models the response of the ear headphones can be used directly audiometer calibration from multiple responsible for this standard is based on standardized audiometry laboratory and scientific publications information before making estimates based.

Document data

International classification (ICS): 13.140.

Chinese classification (CCS): A59.

Estimated length of the Chinese original: 10,134 words.

Adopted international standard: ISO 389-1-1998, IDT.

Supersedes the earlier edition GB/T 4854.1-1999.

Standards quoted by this document

GB/T 7342; GB/T 7614

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

Referenced standards

Cited by

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