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 $500.00 via email in 1~5 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 14199-2010 Electroacoustics—General specification for hearing aids $150.00 immediately valid
GB/T 15173-2010 Electroacoustics—Sound calibrators $930.00 via email in 1~3 business day valid
GB/T 15261-2008 Measurement methods for acoustic properties of ultrasonically tissue-mimicking materials $210.00 via email in 1~3 business day valid
GB/T 15952-2010 Electroacoustics - Specifications for personal sound exposure meters $320.00 via email in 1~3 business day valid
GB/T 20441.1-2010 Electroacoustics - Measurement microphones - Part 1: Specifications for laboratory standard microphones $160.00 via email in 1~3 business day valid
GB/T 20441.2-2018 Electroacoustics—Measurement microphones—Part 2:Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique $490.00 via email in 1~5 business day valid
GB/T 20441.3-2010 Electroacoustics - Measurement microphone - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique $280.00 via email in 1~3 business day valid
GB/T 20441.4-2006 Measurement microphones—Part 4: Specifications for working standard microphones $140.00 via email in 1~3 business day valid
GB/T 20441.5-2017 Electroacoustics--Measurement microphones--Part 5: Methods for pressure calibration of workingstandard microphones by comparison $250.00 via email in 1~3 business day valid
GB/T 20441.6-2017 Electroacoustics-Measurement microphones-Part 6:Electrostatic actuators for determination of frequency response $370.00 via email in 1~5 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 25102.2-2010 Electroacoustics—Hearing aids—Part 2:Hearing aids with automatic gain control circuits $330.00 via email in 1~3 business day valid
GB/T 25102.4-2010 Electroacoustics—Hearing aids—Part 4:Induction loop systems for hearing aid purposes—Magnetic field strength $420.00 via email in 1~3 business day valid
GB/T 25102.6-2017 Electroacoustics-Hearing aids-Part 6:Characteristics of electrical input circuits for hearing aids $80.00 via email in 1~3 business day valid
GB/T 25102.7-2017 Electroacoustics--Hearing aids--Part 7: Measurement of the performance characteristics of hearing aids for production, supply and delivery quality assurance purposes $250.00 via email in 1~3 business day valid
GB/T 25102.8-2017 Electroacoustics-Hearing aids-Part 8:Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions $370.00 via email in 1~5 business day valid
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