2025-7-11 18.97.14.87
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
GB 9706.237-2020 Medical electrical equipment—Part 2-37: Particular requirements for the basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment 500.0 via email in 1~5 business day valid,,2023-5-1
GB/T 14199-1993 General specification for pocket hearing aids 190.0 via email in 1~3 business day abolished2011-04-01,2011-4-1,1993-10-1
GB/T 14199-2010 Electroacoustics—General specification for hearing aids 150.0 via email in 1 business day valid,,2011-4-1
GB/T 15173-2010 Electroacoustics—Sound calibrators 930.0 via email in 1~3 business day valid,,2011-4-1
GB/T 15261-2008 Measurement methods for acoustic properties of ultrasonically tissue-mimicking materials 210.0 via email in 1~3 business day valid,,2008-9-1
GB/T 15952-2010 Electroacoustics - Specifications for personal sound exposure meters 320.0 via email in 1~3 business day valid,,2011-5-1
GB/T 20441.1-2010 Electroacoustics - Measurement microphones - Part 1: Specifications for laboratory standard microphones 160.0 via email in 1~3 business day valid,,2011-5-1
GB/T 20441.2-2018 Electroacoustics—Measurement microphones—Part 2:Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique 490.0 via email in 1~5 business day valid,,2019-1-1
GB/T 20441.3-2010 Electroacoustics - Measurement microphone - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique 280.0 via email in 1~3 business day valid,,2011-5-1
GB/T 20441.4-2006 Measurement microphones—Part 4: Specifications for working standard microphones 140.0 via email in 1~3 business day valid,,2007-2-1
GB/T 20441.5-2017 Electroacoustics--Measurement microphones--Part 5: Methods for pressure calibration of workingstandard microphones by comparison 250.0 via email in 1~3 business day valid,,2018-4-1
GB/T 20441.6-2017 Electroacoustics-Measurement microphones-Part 6:Electrostatic actuators for determination of frequency response 370.0 via email in 1~5 business day valid,,2018-5-1
GB/T 20441.7-2025 Electroacoustics—Measurement microphones—Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones 270.0 via email in 1~3 business day valid,,2025-5-30
GB/T 20441.8-2025 Electroacoustics—Measurement microphones—Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison 435.0 via email in 1~5 business day valid,,2025-5-30
GB/T 25102.1-2010 Electroacoustics - Hearing aids - Part 1：Hearing aids with induction pick-up coil input 70.0 via email in 1~3 business day valid,,2011-4-1
GB/T 25102.100-2010 Electroacoustics—Hearing aids—Part 0:Measurement of electroacoustical characteriistics 300.0 via email in 1~3 business day valid,,2011-4-1
GB/T 25102.12-2018 Electroacoustics—Hearing aids—Part 12:Dimensions of electrical connector systems 250.0 via email in 1~3 business day valid,,2019-1-1
GB/T 25102.2-2010 Electroacoustics—Hearing aids—Part 2:Hearing aids with automatic gain control circuits 330.0 via email in 1~3 business day valid,,2011-4-1
GB/T 25102.4-2010 Electroacoustics—Hearing aids—Part 4:Induction loop systems for hearing aid purposes—Magnetic field strength 420.0 via email in 1~3 business day valid,,2011-4-1
GB/T 25102.6-2017 Electroacoustics-Hearing aids-Part 6:Characteristics of electrical input circuits for hearing aids 80.0 via email in 1~3 business day valid,,2018-5-1
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GB 9706.237-2020 Medical electrical equipment—Part 2-37: Particular requirements for the basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment 
  Issued on: 2020-04-09   Price(USD): 500.0
GB/T 14199-1993 General specification for pocket hearing aids 
  Issued on: 1993-02-02   Price(USD): 190.0
GB/T 14199-2010 Electroacoustics—General specification for hearing aids 
  Issued on: 2010-9-2   Price(USD): 150.0
GB/T 15173-2010 Electroacoustics—Sound calibrators 
  Issued on: 2010-9-2   Price(USD): 930.0
GB/T 15261-2008 Measurement methods for acoustic properties of ultrasonically tissue-mimicking materials 
  Issued on: 2008-01-22   Price(USD): 210.0
GB/T 15952-2010 Electroacoustics - Specifications for personal sound exposure meters 
  Issued on: 2010-12-1   Price(USD): 320.0
GB/T 20441.1-2010 Electroacoustics - Measurement microphones - Part 1: Specifications for laboratory standard microphones 
  Issued on: 2010-12-1   Price(USD): 160.0
GB/T 20441.2-2018 Electroacoustics—Measurement microphones—Part 2:Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique 
  Issued on: 2018-06-07   Price(USD): 490.0
GB/T 20441.3-2010 Electroacoustics - Measurement microphone - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique 
  Issued on: 2010-12-1   Price(USD): 280.0
GB/T 20441.4-2006 Measurement microphones—Part 4: Specifications for working standard microphones 
  Issued on: 2006-08-23   Price(USD): 140.0
GB/T 20441.5-2017 Electroacoustics--Measurement microphones--Part 5: Methods for pressure calibration of workingstandard microphones by comparison 
  Issued on: 2017-09-07   Price(USD): 250.0
GB/T 20441.6-2017 Electroacoustics-Measurement microphones-Part 6:Electrostatic actuators for determination of frequency response 
  Issued on: 2017-11-01   Price(USD): 370.0
GB/T 20441.7-2025 Electroacoustics—Measurement microphones—Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones 
  Issued on: 2025-05-30   Price(USD): 270.0
GB/T 20441.8-2025 Electroacoustics—Measurement microphones—Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison 
  Issued on: 2025-05-30   Price(USD): 435.0
GB/T 25102.1-2010 Electroacoustics - Hearing aids - Part 1：Hearing aids with induction pick-up coil input 
  Issued on: 2010-9-2   Price(USD): 70.0
GB/T 25102.100-2010 Electroacoustics—Hearing aids—Part 0:Measurement of electroacoustical characteriistics 
  Issued on: 2010-9-2   Price(USD): 300.0
GB/T 25102.12-2018 Electroacoustics—Hearing aids—Part 12:Dimensions of electrical connector systems 
  Issued on: 2018-06-07   Price(USD): 250.0
GB/T 25102.2-2010 Electroacoustics—Hearing aids—Part 2:Hearing aids with automatic gain control circuits 
  Issued on: 2010-9-2   Price(USD): 330.0
GB/T 25102.4-2010 Electroacoustics—Hearing aids—Part 4:Induction loop systems for hearing aid purposes—Magnetic field strength 
  Issued on: 2010-9-2   Price(USD): 420.0
GB/T 25102.6-2017 Electroacoustics-Hearing aids-Part 6:Characteristics of electrical input circuits for hearing aids 
  Issued on: 2017-11-01   Price(USD): 80.0
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