Số hiệu tiêu chuẩn
NF S31-049-9*NF EN 20140-9
Tên tiêu chuẩn
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.
Ngày phát hành
1994-01-01
Tiêu chuẩn tương đương
EN 20140-9:1993,IDT * ISO 140-9:1985,IDT
Tiêu chuẩn liên quan
NF EN 20140-2 * NF EN 20717-1 * ISO 354 * S31-003 * CEI 60225
Thay thế cho
NF S31-074:198304 (S31-074)
Thay thế bằng
NF EN ISO 10848-2:200611 (S31-097-2)
Lịch sử ban hành
NF EN ISO 10848-2:200611 (S31-097-2)*NF S31-049-9*NF EN 20140-9*NF S31-074:198304 (S31-074)
Từ khóa
Testing conditions * Suspended ceilings * Acoustic testing * Buildings * Acoustic measurement * Rooms * Noise (environmental) * Sound proofing * Acoustic * Laboratory tests * Sound pressure * Sound * Acoustics * Laboratory testing * Sound insulation * Noise control (acoustic)