T/CECA 78-2022
Porous sound-absorbing particles for microspeakers (English Version)

Standard No.

T/CECA 78-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

Group Standards of the People's Republic of China

Latest

T/CECA 78-2022

Scope

This document specifies the structural characteristics, technical requirements, test methods, inspection rules, packaging, transportation and storage of porous sound-absorbing particles for micro-speakers. This document is applicable to porous sound-absorbing particles with sizes ranging from 0.1 μm to 2000 μm and different appearance morphologies. Sound-absorbing particles of other sizes for micro speakers can be used as a reference.

T/CECA 78-2022 history

• 2022 T/CECA 78-2022 Porous sound-absorbing particles for microspeakers