GB/T 28484-2012 General specification for compression and expansion equipment of electrophones

GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB 8898-2001 Audio, video and similar electronic apparatus—Safety requirements GB/T 9384-1997 Environmental testing requirements and methods for broadcasting receivers, broadcasting television receivers, tape recorders and audio amplifiers GB 13837-2003 GB/T 28489-2012 GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) GB/T 5465.2-1996 Graphical symbols for use on electrical equipment GB/T 5465.2-2008 Graphical symbols for use on electrical equipment—Part 2:Graphical symbols GB/T 5465.2-2023 Graphical symbols for use on electrical equipment—Part 2:Graphical symbols GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 2829-2025 Sampling procedures and tables for periodic inspection by attributes(Apply to inspection of process stability)