Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GB/T 13948-1992 Measuring methods for transmitters $904.00 via email in 1~5 business day abolished
GB/T 14197-2012 Preferred matching values for the interconnections of audio,video and audiovisual systems $330.00 via email in 1~3 business day valid
GB/T 14198-2012 General specification for microphones $270.00 via email in 1~3 business day valid
GB/T 14199-1993 General specification for pocket hearing aids $190.00 via email in 1~3 business day abolished
GB/T 14200-1993 performance requirements for high fidelity audio amplifiers $100.00 via email in 1~3 business day abolished
GB/T 14471-2013 General Specification for Headphones $120.00 immediately valid
GB/T 14474-1993 specification for horn loudspeakers $150.00 via email in 1~3 business day superseded
GB/T 14474-2024 Horn loudspeakers—General requirements $375.00 via email in 1~5 business day valid
GB/T 14475-1993 of measurement for horn loudspeakers $150.00 via email in 1~3 business day abolished
GB/T 14475-2024 Horn loudspeakers—Measuring methods $735.00 via email in 1~5 business day valid
GB/T 14476-1993 method for the objective estimating of speech intelligibility in auditoria $120.00 via email in 1~3 business day superseded
GB/T 15381-1994 Electrical and audio requirements for the conference systems $450.00 via email in 1~3 business day abolished
GB/T 15528-2013 Methods of Measurement on Microphones and Earphones for Speech Communications $390.00 via email in 1~3 business day valid
GB/T 17276-1998 General specification for wireless microphone systems $240.00 via email in 1~3 business day valid
GB/T 17561-1998 Instruments for the measurement of sound intensity--Measurement with pairs of pressure sensing microphones $330.00 via email in 1~3 business day valid
GB/T 25102.1-2010 Electroacoustics - Hearing aids - Part 1:Hearing aids with induction pick-up coil input $70.00 via email in 1~3 business day valid
GB/T 25102.100-2010 Electroacoustics—Hearing aids—Part 0:Measurement of electroacoustical characteriistics $300.00 via email in 1~3 business day valid
GB/T 25102.12-2018 Electroacoustics—Hearing aids—Part 12:Dimensions of electrical connector systems $250.00 via email in 1~3 business day valid
GB/T 25102.13-2010 Electroacoustics - Hearing aids - Part13: Electromagnetic compatibility (EMC) $140.00 via email in 1~3 business day valid
GB/T 25102.2-2010 Electroacoustics—Hearing aids—Part 2:Hearing aids with automatic gain control circuits $330.00 via email in 1~3 business day valid
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