In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 36, No. 5_Supplement ( 1964-05-01), p. 1024-1024
Abstract:
Essentially, all codes that provide for control of impact noise in buildings rely on tests and acceptance criteria based on the impact machine described in document ISO/R140-1960(E). The author offered earlier philosophical criticism of this type of test in a Letter to the Editor [J. Acoust. Soc. Am. 35, 1453 (1963)]. At the fall conferences of the Building Research Institute, in a special session on impact noise, he and his associates offered, on 19 November, experimental evidence of serious reversal of rank-ordering of some floors when the ISO machine was substituted for real footfall impact. A study of the European literature to trace the development of the ISO machine and impact-noise tests has revealed a continuous line of evidence unfavorable to the ISO test, including recitation of serious discrepancies between ISO test data and living experience in residences, which makes its very difficult to understand how the ISO test has obtained such wide acceptance. Because a large body of important information seems to have been unnoticed or ignored, this paper reviews some significant steps in the development of the ISO machine, some of the serious deficiencies cited in the literature, and some of the physical explanations of these discrepancies.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1964
detail.hit.zdb_id:
1461063-2
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