STN EN ISO 11654 (730534) Date: 1.11.2001

Acoustics. Sound absorbers for use in buildings. Rating of sound absorption (ISO 11654:1997)

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STN EN ISO 11654 (730534)

Date: 1.11.2001

Acoustics. Sound absorbers for use in buildings. Rating of sound absorption (ISO 11654:1997)

78926
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Annotation:

Táto medzinárodná norma stanovuje metódu, ktorou sa môžu kmitočtové závislé hodnoty činiťeľa zvukovej pohltivosti prepočítať na jediné číslo.

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Update dated on

  • 2018-07-16

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