ASTM E989-21
Standard Classification for Determination of Single-Number Metrics for Impact Noise
Standard Classification for Determination of Single-Number Metrics for Impact Noise
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 21 мая 2021 г.
- SKU:
- ASTM E989-21
Abstract
Significance and Use 4.1 The rating increases as the impact sound attenuation of the floor ceiling structure increases. The rating can be used by architects, builders, and specification and code authorities for acoustical design purposes i...
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