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Chinese Standard Classification
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| Position: Search | valid to be valid superseded to be superseded abolished to be abolished |
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GB/T 15173-2010 Electroacoustics—Sound calibrators
Issued on: 2010-9-2 Price(USD): 930.0 |
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GB/T 25102.100-2010 Electroacoustics—Hearing aids—Part 0:Measurement of electroacoustical characteriistics
Issued on: 2010-9-2 Price(USD): 300.0 |
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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 |
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GB/T 3785.1-2010 Electroacoustics—Sound level meters—Part 1:Specifications
Issued on: 2010-9-2 Price(USD): 420.0 |
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GB/T 15261-2008 Measurement methods for acoustic properties of ultrasonically tissue-mimicking materials
Issued on: 2008-01-22 Price(USD): 210.0 |
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GB/T 20441.4-2006 Measurement microphones—Part 4: Specifications for working standard microphones
Issued on: 2006-08-23 Price(USD): 140.0 |
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YY/T 0458-2003 Technical requirements for ultrasonically blood-mimicking Doppler phantom
Issued on: 2003-06-20 Price(USD): 280.0 |
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GB/T 14199-1993 General specification for pocket hearing aids
Issued on: 1993-02-02 Price(USD): 190.0 |
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