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现行 ISO 20145:2019
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Pneumatic fluid power — Test methods for measuring acoustic emission pressure levels of exhaust silencers 气动流体动力 - 测量排气消声器声发射压力水平的试验方法
发布日期: 2019-10-21
本文件规定了测量排气消声器出口处声压水平的两种方法: -第一种方法称为“稳态模式”,旨在评估稳态流量下的噪声水平,即恒定上游压力(根据ISO 6358-1进行稳态试验);和 -第二种方法称为“排放”,旨在测量气压降低期间的噪声水平(根据ISO 6358?2进行排放试验)。 本文件适用于符合ISO 6358-1和ISO 6358-2适用范围的、旨在降低压缩空气排放产生的声音的气动排气消声器和装置。
This document specifies two methods of measuring the level of acoustic pressure at the outlet of an exhaust silencer: — the first method, called "steady-state mode", is intended to evaluate the noise level under steady state flow, i.e. constant upstream pressure (steady-state test according to ISO 6358?1); and — the second method, called "discharge", is intended to measure the noise level during the decrease of the pneumatic pressure (discharge test according to ISO 6358?2). This document is applicable to pneumatic exhaust silencers and devices designed to reduce the sound produced by discharges of compressed air, entering in the scope of application of ISO 6358?1 and ISO 6358?2.
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归口单位: ISO/TC 131/SC 5
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