标准编号：ISO 12999-2:2020
中文名称：声学 建筑声学测量不确定度的测定和应用 第2部分：吸声
英文名称：Acoustics — Determination and application of measurement uncertainties in building acoustics — Part 2: Sound absorption
发布日期：2020-06
标准范围
This document specifies how to calculate:
— the uncertainty of sound absorption coefficients and equivalent sound absorption areas measured
according to ISO 354;
— the uncertainty of the practical and weighted sound absorption coefficients determined according
to ISO 11654;
— the uncertainty of the object sound absorption coefficient according to ISO 20189; and
— the uncertainty of the single number rating determined according to EN 1793-1.
Furthermore, the use of uncertainties in reporting measured or weighted sound absorption coefficients is explained.
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