Reference number
ISO 140-9:1985
© ISO 2024
ISO 140-9:1985
Acoustics — Measurements of sound insulation in buildings and of building elements — Part 9: Laboratory measurement of room-to-room airborne sound insulation of a suspended ceiling with a plenum above it
Edition 1
1985-02
Withdrawn
Withdrawn (Edition 1, 1985)

Abstract

Specifies a method for measuring a quantity called the suspended ceiling normalized level difference when the sound transmitted by paths other than the required paths is negligible.

General information

  • Status
     : Withdrawn
    Publication date
     : 1985-02
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 43/SC 2
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Life cycle

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