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Chinese Standard Classification
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GB/T 19889.1-2026 Acoustics—Field measurement of sound insulation in buildings and of building elements—Part 1: Airborne sound insulation between rooms
Issued on: 2026-01-28 Price(USD): 675.0 |
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GB/T 25077.1-2025 Acoustics—Determination of airflow resistance—Part 1:Static airflow method
Issued on: 2025-12-31 Price(USD): 270.0 |
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GB/T 4130.1-2025 Acoustics - Calibration of hydrophones - Part 1: Procedures for free-field calibration
Issued on: 2025-8-1 Price(USD): 1155.0 |
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GB/T 45305.2-2025 Acoustics - Laboratory measurement of sound insulation of building elements - Part 2: Measurement of airborne sound insulation
Issued on: 2025-8-1 Price(USD): 375.0 |
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GB/T 46044.2-2025 Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms
Issued on: 2025-8-1 Price(USD): 540.0 |
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GB/T 45830-2025 Acoustics - Acoustic quality of open office spaces
Issued on: 2025-8-1 Price(USD): 660.0 |
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GB/T 45726-2025 Acoustics—Determination of high-frequency sound power levels emitted by machinery and equipment
Issued on: 2025-05-30 Price(USD): 375.0 |
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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 |
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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 |
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GB/T 17249.1-2025 Acoustics—Recommended practice for the design of low-noise workplaces containing machinery—Part 1: Noise control strategies
Issued on: 2025-05-30 Price(USD): 510.0 |
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GB/T 17249.2-2025 Acoustics—Recommended practice for the design of low-noise workplaces containing machinery—Part 2: Noise control measures
Issued on: 2025-05-30 Price(USD): 570.0 |
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GB/T 16405-2025 Acoustics—Measurement of insertion loss of ducted silencers without flow—Laboratory survey method
Issued on: 2025-05-30 Price(USD): 270.0 |
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GB/T 3241.1-2025 Electroacoustic—Octave-band and fractional-octave-band filters—Part 1: Specifications
Issued on: 2025-05-30 Price(USD): 645.0 |
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GB/T 3241.2-2025 Electroacoustics—Octave-band and fractional-octave-band filters—Part 2: Pattern evaluation tests
Issued on: 2025-05-30 Price(USD): 375.0 |
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GB/T 5111-2024 Acoustics—Measurement of noise emitted by railbound vehicles
Issued on: 2024-05-28 Price(USD): 690.0 |
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GB 7966-1987 Acoustics; Ultrasonic power measurement in the frequency range 0.5~10MHz
Issued on: 1987-06-22 Price(USD): 165.0 |
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GB/T 6881-2023 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Precision methods for reverberation test rooms
Issued on: 2023-9-7 Price(USD): 900.0 |
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GB/T 42473-2023 Acoustics―Procedures for assessment and prediction of noise annoyance
Issued on: 2023-03-17 Price(USD): 435.0 |
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GB/T 3785.2-2023 Electroacoustics—Sound level meters—Part 2: Pattern evaluation tests
Issued on: 2023-05-23 Price(USD): 510.0 |
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GB/T 3785.1-2023 Electroacoustics—Sound level meters—Part 1: Specifications
Issued on: 2023-05-23 Price(USD): 690.0 |
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