Home / Standards / GB/Z 40842-2021 GB/Z 40842-2021 Active General technical requirenments for electrolarynx 电子人工喉通用技术要求 Standard Type GBZ ICS 17.140.50 CCS L13 Status 现行 Issue Date 2021-10-11 Implementation N/A Responsible Dept 民政部 Drafting Unit N/A