ISO 7235

Acoustics; measurement procedures for ducted silencers; insertion loss, flow noise and total pressure loss

1991-04-00

Hết hiệu lực

DIN 45646 (1988-09), MOD * DIN EN 27235 (1993-09), MOD * DIN EN ISO 7235 (1995-09), IDT * BS EN ISO 7235 (1996-05-15), IDT * GB/T 4760 (1995), NEQ * EN ISO 7235 (1995-05), IDT * prEN ISO 7235 (1994-11), IDT * NF S31-127 (1991-07-01), IDT * NF S31-127 (1995-07-01), IDT * SN EN ISO 7235 (1995), IDT * OENORM EN ISO 7235 (1995-10-01), IDT * OENORM EN 27235 (1993-09-01), IDT * PN-EN ISO 7235 (1998-03-31), IDT * SS-EN ISO 7235 (1995-11-17), IDT * UNE-EN ISO 7235 (1996-04-29), IDT * STN EN ISO 7235 (1998-12-01), IDT * NEN-EN-ISO 7235:1995 en (1995-06-01), IDT

IEC 60225*CEI 60225 (1966) * IEC 60651*CEI 60651 (1979) * IEC 60804*CEI 60804 (1985) * ISO 266 (1975-07) * ISO 3741 (1988-12) * ISO 5136 (1990-12) * ISO 5221 (1984-01)

ISO/DIS 7235 (1986-04)

ISO 7235 (2003-08)

ISO 7235 (1991-04) * ISO 7235 (2003-08) * ISO/DIS 7235 (1986-04)

Absorption * Acoustic measurement * Acoustic testing * Acoustics * Air flow * Attenuation constant * Canals * Clay * Corrrections * Damping * Definitions * Ducts * Engine silencers * Equipment * External noise * Fans * Flow * Graphic symbols * Handling * Insertion loss * Loudspeakers * Measurement * Measurement circuits * Measuring ducts * Measuring equipment * Measuring instruments * Measuring objects * Measuring techniques * Microphone arrangement * Microphones * Noise * Noise (environmental) * Noise measurements * Performance tests * Pressure drops * Reflection * Reverberation rooms * Silencers * Sound * Sound absorption * Sound fields * Sound intensity * Sound level * Sound meters * Sound pressure * Sound pressure level * Structure-borne noise * Symbols * Testing * Testing set-ups * Tests * Transmittances * Ventilation ductwork * Ventilation equipment * Walls * Sound levels * Sewers * Qualification tests * Channels * Extraneous noise

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