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2020-12-02

声学 管道消声器无气流状态下插入损失测量 实验室简易法
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1996-05-27

Acoustics — Measurement of insertion loss of ducted silencers without flow — Laboratory survey method
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2020-07-01

Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method (ISO 11691:1995)
声学无流量管道消声器插入损失的测量实验室测量方法

2010-04-14

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噪声 不流动的管道消音器的插入损耗的测量 实验室调查方法

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2007-10-24

음향 — 덕트 소음기와 공기 단말장치의 시험실 측정 절차 — 삽입손실, 기류소음 및 총 압력손실
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2020-12-30

Acoustics. Laboratory measurement procedures for ducted silencers and air-terminal units. Insertion loss, flow noise and total pressure loss
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2010-04-30

Acoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure loss
声学——管道消声器和风道末端装置的实验室测量程序——插入损失、流动噪声和总压损失

2003-08-28

Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003)
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2010-03-03

声学 管道消声器和风道末端单元的实验室测量方法 插入损失、气流噪声和全压损失
Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units loss, fiow noise and total pressure loss

2010-12-01