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GB/T 1859.1-2026 Reciprocating internal combustion engines—Measurement of sound power level using sound pressure—Part 1: Engineering method
Issued on: 2026-01-28 Price(USD): 510.0 |
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GB/T 1859.2-2026 Reciprocating internal combustion engines—Measurement of sound power level using sound pressure—Part 2: Survey method
Issued on: 2026-01-28 Price(USD): 375.0 |
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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/Z 7584.5-2026 Acoustics—Hearing protectors—Part 5: Method for estimation of noise reduction using fitting by inexperienced test subjects
Issued on: 2026-02-27 Price(USD): 375.0 |
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GB/Z 41283.2-2026 Acoustics—Soundscape—Part 2: Data collection and reporting requirements
Issued on: 2026-02-27 Price(USD): 510.0 |
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GB/Z 41283.3-2026 Acoustic - Soundscape - Part 3: Data analysis
Issued on: 2026-02-27 Price(USD): 435.0 |
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GB/Z 3222.3-2026 Acoustics—Description, measurement and assessment of environmental noise—Part 3: Objective method for the measurement of prominence of impulsive sounds and for adjustment of LAeq
Issued on: 2026-02-27 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 1859.4-2025 Reciprocating internal combustion engines - Measurement of sound power level using sound pressure - Part 4: Survey method for use in situ
Issued on: 2025-8-1 Price(USD): 315.0 |
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GB/T 4129-2025 Acoustics - Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
Issued on: 2025-8-1 Price(USD): 330.0 |
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GB/T 20242-2025 Acoustics - Measurement of real-ear acoustical performance characteristics of hearing aids
Issued on: 2025-8-1 Price(USD): 495.0 |
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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 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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T/CIS 17009-2025 General technical specification for bath type ultrasonic cleaning machine
Issued on: 2025-07-01 Price(USD): |
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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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