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An intercomparison of measurements of sound insulation of window panes and windows was carried out and documented previously. Measurements were carried out by 13 laboratories from six different EC-countries on a window pane, a single metal sheet, and a double metal sheet. The agreement between the laboratories is evaluated for the results obtained in 1/3-octave bands and for the single value, R(w). The weighted sound insulation index R(w) is determined according to ISO 717 part 3, and is convenient for relative ranking of different window constructions. However, in some specific cases a single number rating index based on an actual source spectrum may be useful.

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Authors: OLESEN H, JYSK Teknologisk, Aarhus (DK);RASMUSSEN O, JYSK Teknologisk, Aarhus (DK)
Bibliographic Reference: EUR 12594 EN (1990) 52 pp., MF, ECU 4
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