AASHTO R 20-99 (2008)
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This recommended practice is to provide guidance in acceptable procedures for measuring highway noise levels.
Product Details
- Published:
- 08/01/1999
- Number of Pages:
- 2
- File Size:
- 1 file , 280 KB
- Product Code(s):
- MA-020-99-UL, MA-020-99-UL