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immediate downloadReleased: 2019-10-28
BS ISO 20145:2019
Pneumatic fluid power. Test methods for measuring acoustic emission pressure levels of exhaust silencers
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Standard number: | BS ISO 20145:2019 |
Pages: | 32 |
Released: | 2019-10-28 |
ISBN: | 978 0 580 88333 0 |
Status: | Standard |
DESCRIPTION
BS ISO 20145:2019
This standard BS ISO 20145:2019 Pneumatic fluid power. Test methods for measuring acoustic emission pressure levels of exhaust silencers is classified in these ICS categories:
- 23.100.99 Other fluid power system components
This document specifies two methods of measuring the level of acoustic pressure at the outlet of an exhaust silencer:
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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
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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.