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Chinese National Standard Category: Sound and electronic sound equipment |
English Title: | Electroacoustics—Hearing aids—Part 4:Induction loop systems for hearing aid purposes—Magnetic field strength |
Chinese Title: | 电声学 助听器 第4部分:助听器用感应回路系统磁场强度 |
Standard No.: | GB/T 25102.4-2010 |
Category No.: | M72 |
Issued by: | AQSIQ; SAC |
Issued on: | 2010-9-2 |
Implemented on: | 2011-4-1 |
Status: | valid |
Superseded by: | |
Superseded on: | |
Abolished on: | |
Superseding: | GB/T 11454-1989 Magnetic field strength in audio-frequency induction loops for hearing aid purposes |
Word Count: | 15000 words |
Similar Standards: | GB/T 13948-1992 GB 6660-1986 GB/T 42758-2023 WH/T 82-2019 GB/T 25102.12-2018 GB/T 35784-2017 GB/T 25102.8-2017 GB/T 25102.6-2017 GB/T 15528-2013 GB/T 12060.7-2013 GB/T 14471-2013 GB/T 9397-2013 GB/T 12060.4-2012 GB/T 14198-2012 GB/T 6278-2012 GB/T 14197-2012 GB/T 12060.11-2012 GB/T 12060.9-2011 GB/T 28047-2011 GB/T 28048-2011 |
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