Home / Standards / GB/T 4214.21-2025 GB/T 4214.21-2025 Active Test method for noise of household and similar electrical appliances—Part 21:Particular requirements for oral hygiene appliances 家用和类似用途电器噪声测试方法 第21部分:口腔卫生器具的特殊要求 Standard Type GBT ICS 97.030 CCS Z 32 Status 现行 Issue Date 2025-04-25 Implementation 2025-11-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A