NBN EN 1793-1-1997 标准详情
- 标准号:NBN EN 1793-1-1997
- 中文标题:
- 英文标题:Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 1: Intrinsic Characteristics Of Sound Absorption
- 标准类别:比利时标准NBN
- 发布日期:
Defines the laboratory procedure for measurement of sound absorption of flat noise barriers or flat cladding for retaining walls or tunnels. Describes the assessing of intrinsic sound absorption performance of roadside noise reducing devices which ca
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