Nelson, D. "Reduced-Noise Gas Flow Design Guide." Nelson Acoustics. Revised September 2005. (.pdf file)
	Workbook for estimating gas flow system noise emission levels. Revised September 2005 (Excel file)
	Pipe lagging specification (.pdf file)
	Example workbook solutions #1 and #2 (Excel file)
	Example workbook solution #3 (Excel file)

The "Quiet By Design" Program uses equipment noise emission limits determined in accordance with NASA Glenn Research Center's "Buy Quiet" Program.

Please note that this program is focused solely on hearing loss prevention and does not address other important noise exposure issues such as speech intelligibility and work environment comfort that are often associated with moderate- or lower-level noise sources. A comprehensive approach to noise exposure management will consider these lower and moderate level noise issues as well as hearing loss prevention when developing requirements for any siting, procurement, and design projects.

Visit the "Buy Quiet" page. Then download the Worksheet for computing equipment noise emission limits.

You will need to install the free Adobe Acrobat Reader viewer software to see the documents that are in Portable Document Format (PDF file).

Please give us feedback on Reduced-Noise Gas Flow Design Guide. We welcome your comments, error reports, suggestions for improvement of this product, and ideas for future products you'd like to see.

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