Số hiệu tiêu chuẩn
prEN ISO 7235
Tên tiêu chuẩn
Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO/DIS 7235:2001)
Ngày phát hành
2001-06-00
Tiêu chuẩn tương đương
DIN EN ISO 7235 (2001-09), IDT * ISO/DIS 7235 (2001-06), IDT * OENORM EN ISO 7235 (2001-09-01), IDT
Từ khóa
Absorption * Acoustic measurement * Acoustic testing * Acoustics * Air ducts * Air flow * Attenuation constant * Cables * Calibration * Canals * Checking equipment * Classes * Clay * Corrrections * Damping * Definitions * Ducts * Engine silencers * Equipment * External noise * Fans * Flow * Graphic symbols * Handling * Insertion loss * Laboratories * Laboratory testing * Laboratory tests * Loudspeakers * Measurement * Measurement circuits * Measuring ducts * Measuring environment * Measuring equipment * Measuring instruments * Measuring objects * Measuring techniques * Microphone arrangement * Microphones * Mineral wool * Noise * Noise abatement * Noise (environmental) * Noise measurements * Performance tests * Precision * Pressure drops * Reflection * Reverberation rooms * Silencers * Sonic testing * Sound * Sound absorption * Sound fields * Sound intensity * Sound level * Sound levels * Sound meters * Sound pressure * Sound pressure level * Sound sources * Structure-borne noise * Symbols * Test results * Testing * Testing set-ups * Tests * Transmittances * Ventilation ductwork * Ventilation equipment * Walls * Sewers * Qualification tests * Channels * Extraneous noise * Testing devices