GB/T 3239-1982
ActiveExpression of physical and subjective magnitudes of sound and noise in air
空气中声和噪声强弱的主观和客观表示法
Application Summary AI generated
This standard specifies methods for expressing both objective physical measurements (such as sound pressure level) and subjective human perception (such as loudness) of sound and noise in air. It is applied in environmental noise assessment, acoustic product testing, and industrial hygiene contexts to ensure consistent reporting of noise levels across measurement and evaluation activities in China.
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