NEN-ISO 20145
Pneumatic fluid power - Test methods for measuring acoustic emission pressure levels of exhaust silencers
| Organization: | NEN |
| Publication Date: | 1 November 2019 |
| Status: | active |
| Page Count: | 32 |
| ICS Code (Other fluid power system components): | 23.100.99 |
scope:
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.
Document History