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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| Position: Search | valid to be valid superseded to be superseded abolished to be abolished |
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JJG 277-1998 Verification Regulation of Reference Sound Source
Issued on: 1998-3-16 Price(USD): 180.0 |
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JJG 1017-2007 Verification Regulation of Standard Hydrophones in the Frequency Range 1 kHz~1 MHz
Issued on: 2006-12-8 Price(USD): 360.0 |
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GB/T 3767-2016 Acoustics-Determination of sound power levels and sound energy levels of noise sources using sound pressure-Engineering methods for an essentially free field over a reflecting plane
Issued on: 2016-02-24 Price(USD): 930.0 |
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JJG 778-2005 Noise Level Statistical Analyzers
Issued on: 2005-4-28 Price(USD): 420.0 |
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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 17248.5-1999 Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Method requiring environmental corrections
Issued on: 1999-03-08 Price(USD): 300.0 |
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JJF 1275-1990 ~
Issued on: 1990-1-1 Price(USD): 184.0 |
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GB/T 3768-2017 Acoustics―Determination of sound power levels and sound energy levels ofnoise sources using sound pressure―Survey method using an envelopingmeasurement surface over a reflecting plane
Issued on: 2017-12-29 Price(USD): 670.0 |
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GB/T 20430-2006 Acoustics―Noise control design procedures for open plant
Issued on: 2006-07-25 Price(USD): 280.0 |
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GB/T 20242-2006 Acoustics - Procedures for the measurements of real-ear acoustical characteristics of hearing aids
Issued on: 2006-5-8 Price(USD): 280.0 |
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GB/T 7966-2009 Acoustics—Ultrasonics power measurement—Radiation force balances and performance requirements
Issued on: 2009-9-30 Price(USD): 540.0 |
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JJG 2037-2004 Verification Scheme of Measuring Instruments for Air Borne Acoustics Pressure
Issued on: 2004-09-21 Price(USD): 130.0 |
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JJG (石油) 10-2000 Verification Regulation of Testing Instrument with Double-Channel Echo
Issued on: 2000-12-01 Price(USD): 150.0 |
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GB/T 16404.2-1999 Acoustics—Determination of sound power levels of noise sources using sound intensity—Part 2:Measurement by scanning
Issued on: 1999-03-08 Price(USD): 270.0 |
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GB/T 16540-1996 Acoustics-Measurement and characterisation of ultrasonic fields in the frequency range 0.5MHz to 15MHz-Hydrophone method
Issued on: 1996-9-9 Price(USD): 450.0 |
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JJG (电子) 04053-1995 Verification Regulation of QO3 Type Noise Figure Metering Device
Issued on: Price(USD): 210.0 |
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JJF 1269-1990 O.T.N. of the Primary Standard for the Sound Pressure of Reciprocity Technique
Issued on: 1990-1-1 Price(USD): 184.0 |
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GB/T 19889.7-2005 Acoustics. Measurement of sound insulation in buildings and of building elements. Part 7: Field measurements of impact sound insulation of floors
Issued on: 2005-07-29 Price(USD): 424.0 |
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JJF 1276-1990 O.T.N of Primary Standard for Watt Level Ultrasonic Power
Issued on: 1990-1-1 Price(USD): 184.0 |
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JJG 991-2004 Verification Regulation of Aural Impedance Audiometers
Issued on: 2004-9-21 Price(USD): 300.0 |
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