Home / Standards / GB 12021.8-1989 GB 12021.8-1989 Abolished The limited value of efficiency and methods of measurement on radio receivers and recorder 收录音机效率限定值及测量方法 Standard Type GB ICS 33.160.30 CCS F04 Status 废止 Issue Date 1989-12-25 Implementation 1990-12-01 Responsible Dept 国家标准委 Drafting Unit N/A