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GB/T 6657-1986 English PDF

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GB/T 6657-1986: Measurement of electroacoustical characteristics of hearing aids
Status: Obsolete
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 6657-1986English719 Add to Cart 5 days [Need to translate] Measurement of electroacoustical characteristics of hearing aids Obsolete GB/T 6657-1986

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Basic data

Standard ID GB/T 6657-1986 (GB/T6657-1986)
Description (Translated English) Measurement of electroacoustical characteristics of hearing aids
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M72
Classification of International Standard 33.160.10
Word Count Estimation 18,150
Date of Issue 7/31/1986
Date of Implementation 8/1/1987
Adopted Standard IEC 60118-0, NEQ
Regulation (derived from) Announcement of Newly Approved National Standards 2010 No. 4 (No. 159 overall)
Issuing agency(ies) National Bureau of Standards
Summary This Standard specifies the use of free-field technology and air conduction hearing aids physical performance characteristics of the method for measuring the ear simulator for measuring air conduction hearing aids electro-acoustic characteristics;

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