GB/T 20441.4-2006
ActiveMeasurement microphones―Part 4: Specifications for working standard microphones
测量传声器 第4部分: 工作标准传声器规范
Application Summary AI generated
This standard specifies the dimensions, performance requirements, and calibration methods for working standard microphones used in acoustical measurements. It is applied in metrology laboratories and industrial settings for calibrating sound level meters, noise dosimeters, and other audio measurement equipment to ensure traceability to national primary standards. The standard ensures consistent and accurate sound pressure level measurements across testing, environmental noise monitoring, and product compliance verification contexts.
Related Standards
GB/T 7164-2004
Radiation detectors for nuclear reactors--Characteristics and test methods
GB/T 18696.1-2004
Acoustics--Determination of sound absorption coefficient and impedance in impedance tubes--Part 1:Method using standing wave ratio
GB/Z 27764-2011
Acoustics - Determination of sound transmission loss in impedance tubes - Transfer matrix method
GB/Z 38251-2019
Acoustics—Calculation of sound attenuation during propagation for electrical converter station—Engineering method
GB/Z 40842-2021
General technical requirenments for electrolarynx
GB/Z 41283.3-2026
Acoustics—Soundscape—Part 3: Data analysis
GB/Z 7584.5-2026
Acoustics—Hearing protectors—Part 5: Method for estimation of noise reduction using fitting by inexperienced test subjects
GB/Z 41283.2-2026
Acoustics—Soundscape—Part 2: Data collection and reporting requirements
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.