GB/T 11454-1989 Replaced National standards

GB/T 11454-1989 Magnetic field strength in audio-frequency induction loops for hearing aid purposes

Publish Date: 1989-07-04 Implement Date: 1990-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 11454-1989

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Electroacoustic devices

ICS Name: Acoustics and acoustic measurement

Publish Date: 1989-07-04

Implement Date: 1990-04-01

Publisher: The National Technical Supervision Bureau

Technical Committee: The National Technical Supervision Bureau

Pages: 4 pages

Development Information

Drafting Units:

National Institute of Metrology and Quality Supervision of China

Drafting Persons:

Zhang Cai, Shen Yang, Shuai Zhengping, and Zhang Yongqiang

Word Count: 3 Thousand words Pages: 4 pages

Superseded by the following standards

GB/T 25102.4-2010 Electroacoustics—Hearing aids—Part 4:Induction loop systems for hearing aid purposes—Magnetic field strength

Adopt standards

IEC 118-4-81

Related Standards

GB/T 3238-1982 Active

GB/T 3238-1982 Acoustical levels and refrence quantities

Publish Date: 1982-06-08

GB/T 3240-1982 Active

GB/T 3240-1982 Preferred frequencies for the acoustical measurement

Publish Date: 1982-06-08

GB/T 3785-1983 Replaced

GB/T 3785-1983 Electric, sonic properties and measuring methods for sound level meters

Publish Date: 1983-06-25

GB/T 5265-1985 Replaced

GB/T 5265-1985 Measurement of underwater noise

Publish Date: 1985-07-26

GB/T 7966-1987 Replaced

GB/T 7966-1987 Acoustics—Ultrasonic power measurement in the frequency range 0.5～10MHz

Publish Date: 1987-06-22

GB/T 11452-1989 Abolished

GB/T 11452-1989 Guide to hearing aid standards

Publish Date: 1989-07-04