Customer Service:
Mon - Fri: 8:30 am - 6 pm EST

 Most recent

ANSI/ASA S12.8-1998 (R2020)

Methods for Determination of Insertion Loss of Outdoor Noise Barriers

Presents methods for determining the insertion loss of outdoor noise barriers. The methods are “direct” BEFORE and AFTER measurements, “indirect” BEFORE measurements at an “equivalent” site, and “indirect” predictions of BEFORE sound levels. Measurements of acoustical descriptors use sound sources naturally present at a site, controlled natural sound sources, or controlled artificial sound sources. This standard was first listed for public review in the November 10, 1995 issue of Standards Action. It is being resubmitted due to substantive changes to the text.

Content Provider
Acoustical Society of America [ASA]


ANSI Logo

As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

CUSTOMER SERVICE
NEW YORK OFFICE
ANSI HEADQUARTERS