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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| Position: Search | valid to be valid superseded to be superseded abolished to be abolished |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 4963-2007 Acoustics—Normal equal-loudness-level contours
Issued on: 1985-2-28 Price(USD): 360.0 |
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GB/T 31013-2014 Acoustics―Acoustic insulation for pipes,valves and flanges
Issued on: 2014-09-03 Price(USD): 490.0 |
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GB/T 17247.1-2000 Acoustics--Attenuation of sound during propagation outdoors--Part 1:Calculation of the absorption of sound by the atmosphere
Issued on: 2000-03-01 Price(USD): 480.0 |
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GB/T 17247.2-1998 Acoustics - Attenuation of sound during propagation outdoors - Part 2: General method of calculation
Issued on: 1998-3-18 Price(USD): 300.0 |
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GB/T 14369-1993 Acoustics-Measurement method of insertion loss and echo reduction for the underwater acoustical material sample
Issued on: 1993-03-17 Price(USD): 120.0 |
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JJG 790-2005 Verification Regulation of Laboratory Standard Microphones (Coupler Reciprocity Method)
Issued on: 2005-10-9 Price(USD): 430.0 |
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JJF 1274-1990 ~
Issued on: 1990-1-1 Price(USD): 184.0 |
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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 |
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JJG 893-2007 Verification Regulation for Ultrasonic Source of Ultrasonic Doppler Foetal Meters
Issued on: 2007-02-28 Price(USD): 280.0 |
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JJG 175-1998 Verification Regulation of Measuring Condenser Microphones
Issued on: 1998-03-16 Price(USD): 220.0 |
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GB/T 17252-1998 Acoustics - Characteristics and measurements of ultrasonic piezoelectric transducers up to 100 kHz
Issued on: 1998-3-18 Price(USD): 150.0 |
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GB/T 31004.1-2014 Acoustics―Measurement of sound insulation in buildings and of building elements using sound intensity―Part 1:Laboratory measurements
Issued on: 2014-09-03 Price(USD): 120.0 |
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GB/T 19889.14-2010 Acoustics—Measurement of sound insulation in buildings and of building elements—Part 14:Guidelines for special situations in the field
Issued on: 2010-9-2 Price(USD): 420.0 |
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GB/T 17249.3-2012 Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 3: Sound propagation and noise prediction in workrooms
Issued on: 2012-11-5 Price(USD): 480.0 |
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JJF 1191-2008 Calibration Specification for Acoustic Performance of Audiometry Rooms
Issued on: 2008-03-24 Price(USD): 360.0 |
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JJF 1146-2006 Calibration Specification for Acoustic Characteristcs of Anechoic Water Tanker
Issued on: 2006-5-23 Price(USD): 240.0 |
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JJG 665-2004 Verification Regulation of Ultrasonic Power Meter for Milliwatt Level
Issued on: 2004-09-21 Price(USD): 180.0 |
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GB/T 15951-1995 Mechanical coupler for measurements on bone vibrators
Issued on: 1995-01-02 Price(USD): 160.0 |
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GB/T 7341.2-1998 - Part 2: Equipment for speech audiometry
Issued on: 1998-5-8 Price(USD): 180.0 |
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JJF 1137-2005 Calibration Specification for Microphone Preamplifiers
Issued on: 2005-10-9 Price(USD): 180.0 |
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