GB/T 25498.5-2017 English Version, GB/T 25498.5-2017 Electroacoustics--Simulators of human head and ear--Part 5: 2 cm3 coupler for the measurement of hearingaids and earphones coupled to the ear by means of ear inserts (English Version)

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Position: Chinese Standard in English/GB/T 25498.5-2017

GB/T 25498.5-2017 Electroacoustics--Simulators of human head and ear--Part 5: 2 cm3 coupler for the measurement of hearingaids and earphones coupled to the ear by means of ear inserts (English Version)
Standard No.:	GB/T 25498.5-2017	Status:	valid remind me the status change Email:
Target Language:	English	File Format:	PDF
Word Count:	7500 words	Translation Price(USD):	160.0 remind me the price change Email:
Implemented on:	2018-4-1	Delivery:	via email in 1~3 business day

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Standard No.:	GB/T 25498.5-2017
English Name:	Electroacoustics--Simulators of human head and ear--Part 5: 2 cm3 coupler for the measurement of hearingaids and earphones coupled to the ear by means of ear inserts
Chinese Name:	电声学人头模拟器和耳模拟器第5部分：测量助听器和以插入方式与人耳耦合的耳机用2cm3声耦合器
Chinese Classification:	A59 Acoustic Measurement
Professional Classification:	GB National Standard
ICS Classification:	17.140.50 17.140.50 Electroacoustics 17.140.50
Source Content Issued by:	AQSIQ; SAC
Issued on:	2017-09-07
Implemented on:	2018-4-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	7500 words
Translation Price(USD):	160.0
Delivery:	via email in 1~3 business day

Standard

GB/T 25498.5-2017 Electroacoustics--Simulators of human head and ear--Part 5: 2 cm3 coupler for the measurement of hearingaids and earphones coupled to the ear by means of ear inserts (English Version)
Standard No.	GB/T 25498.5-2017
Status	valid
Language	English
File Format	PDF
Word Count	7500 words
Price(USD)	160.0
Implemented on	2018-4-1
Delivery	via email in 1~3 business day

Detail of GB/T 25498.5-2017

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Abolished on

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Introduction of GB/T 25498.5-2017

GB/T 25498的本部分规定了一种声耦合器，用于测定125 Hz～8 000 Hz频率范围内，具有特定声阻抗的助听器或耳机的物理特性。�本部分适用于以插入方式耦合到人耳的气导式助听器和耳机，例如耳模或相似器件。�一般情况下，耳机在耦合器中产生的声压与在人耳内产生的声压并不相同，但是它可以作为简便易行的方法用于助听器技术规格和物理数据的交换，以及对规定的插入式测听耳机的校准。�注：本部分插入式耳机为以插入方式与人耳耦合的耳机

Contents of GB/T 25498.5-2017

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