Reference number
Ïã¸ÛÁùºÏ²Ê¿ª½± 140-1:1997/Amd 1:2004
Amendment
Ïã¸ÛÁùºÏ²Ê¿ª½± 140-1:1997/Amd 1:2004
Acoustics — Measurement of sound insulation in buildings and of building elements — Part 1: Requirements for laboratory test facilities with suppressed flanking transmission — Amendment 1: Specific requirements on the frame of the test opening for lightweight twin leaf partitions
Edition 3
2004-12
Withdrawn
Ïã¸ÛÁùºÏ²Ê¿ª½± 140-1:1997/Amd 1:2004
34245
Withdrawn (Edition 3, 2004)
This amendment applies to Ïã¸ÛÁùºÏ²Ê¿ª½± 140-1:1997

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