Số hiệu tiêu chuẩn
STN EN 20140-9
Tên tiêu chuẩn
Acoustics. Measurement of sound insulation in buildings and of building elements. Part 9: Laboratory measurements of room-to-room airborne sound insulation of a suspended ceiling with a plenum above it (ISO 140-9:1985)
Ngày phát hành
1998-09-02
Tiêu chuẩn tương đương
idt EN 20140-9:1993 * idt ISO 140-9:1985
Thay thế bằng
STN EN ISO 10848-2(2006-09)
Lịch sử ban hành
STN EN ISO 10848-2(2006-09)*STN EN 20140-9
Từ khóa
Measurement * Acoustic measurement * Laboratory testing * Acoustic testing * Pressure * Acoustics * Air * Sound insulation * Buildings * Laboratories * Rooms * Structures * Trusses * Measurement, testing and instruments