ISO 6358-2:2013 PDF

Scope: This part of ISO 6358 specifies a discharge test and a charge test as alternative methods for testing pneumatic fluid power components that use compressible fluids, i.e. gases, and that have internal flow passages that can be either fixed or variable in size to determine their flow-rate characteristics. However, this part of ISO 6358 does not apply to components whose flow coefficient is unstable during use, i.e. components that exhibit remarkable hysteretic behaviour (because they can contain flexible parts that deform under the flow) or that have an internal feedback phenomenon (such as regulators),or components that have a cracking pressure such as non-return (check) valves and quick-exhaust valves. In addition, it does not apply to components that exchange energy with the fluid during flow-rate measurement, e.g. cylinders, accumulators, etc.

ISO 6358-2:2013 Referenced Document

ISO 1219-1 Fluid power systems and components — Graphical symbols and circuit diagrams — Part 1: Graphical symbols for conventional use and data-processing applications AMENDMENT 1
ISO 5598 Fluid power systems and components — Vocabulary*， 2020-01-06 Update
ISO 6358-1 Pneumatic fluid power*， 2024-03-01 Update

2019 ISO 6358-2:2019 Pneumatic fluid power — Determination of flow-rate characteristics of components using compressible fluids — Part 2: Alternative test methods
2013 ISO 6358-2:2013 Pneumatic fluid power.Determination of flow-rate characteristics of components using compressible fluids.Part 2: Alternative test methods