What is ISO 20145 - Pneumatic fluid power about?
ISO 20145 discusses pneumatic fluid power. Pneumatic fluid power is the use of fluids under pressure to generate, control, and transmit power. ISO 20145 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)
- 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).
Who is ISO 20145 - Pneumatic fluid power for?
ISO 20145 on pneumatic fluid power is useful for:
- Exhaust silencer manufacturers
- Earthmoving equipment manufacturers
- Aerospace industries
- Design engineers
- Quality control personnel
- Research and development facilities
Why should you use ISO 20145 - Pneumatic fluid power?
Pneumatic fluid power systems perform work by a pressurized fluid bearing directly on a piston in a cylinder or in a fluid motor. ISO 20145 discusses an acoustic test procedure that is intended to provide a common framework to industrial companies to evaluate the sound pressure levels of pneumatic exhaust silencers. ISO 20145 defines two methods of measuring the level of acoustic pressure at the outlet of an exhaust silencer. These methods are capable of being applied by pneumatic equipment manufacturers in their facilities on test benches in accordance with ISO 6358-1 and ISO 6358-2.
The first method, called "steady-state mode”, is intended to evaluate the noise level under steady-state flow, i.e., constant upstream pressure. This measurement is performed at 6,3 bar at least to permit comparison between silencers at the most frequently used operating pressure (or at the maximum admissible pressure if lower than 6,3 bars). 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). To ensure compatibility with the steady-state flow method, the pressure range includes 6,3 bar (or the maximum admissible pressure if lower than 6,3 bars). Using ISO 20145 you can specify methods of measuring the level of acoustic pressure at the outlet of an exhaust silencer.