What is ISO/TR 22681 - Hydraulic fluid power about?
ISO/TR 22681 discusses hydraulic fluid power. Hydraulic fluid power is the use of fluids under pressure to generate, control, and transmit power. ISO/TR 22681 explains the use of the two acceptable methods of reporting particle size, μm(c) and μm(b), that are defined in ISO 11171:2016. ISO/TR 22681 also explains the reasons for the existence of two alternative size reporting methods and their implications with respect to particle count and filter Beta Ratio data.
Who is ISO/TR 22681 - Hydraulic fluid power for?
ISO/TR 22681 on hydraulic fluid power is useful for:
- Hydraulic fluid power systems
- Hydraulic fluid power component manufacturers
- Design engineers
- Quality control personnel
Why should you use ISO/TR 22681 - Hydraulic fluid power?
Hydraulic fluid power is generally used for low-pressure, high volume flow applications. Since they are not capable of withstanding high pressures, there is little use in the fluid power field. ISO/TR 22681 provides direct traceability to the standard international (SI) definition of a metre through NIST SRM 2806. ISO 11171 has been widely used to calibrate automatic particle counters (APCs) for hydraulic, lube oil, diesel fuel, and other non-aqueous liquid applications since 1999. NIST SRM 2806 is the primary calibration material used in ISO/TR 22681.
ISO/TR 22681 provides the industry with tools to relate past SRM 2806a and new SRM 2806b data without extensive revisions to existing standards, specifications, and other literature. ISO/TR 22681 provides a historically consistent, traceable definition of μm(c) while allowing an option to report sizes in terms of a defined μm(b) as needed. ISO/TR 22681 summarizes the underlying reasons for the minor revision and its practical impact on the industry. Using ISO/TR 22681 you can explain the use of the two acceptable methods of reporting particle size, μm(c) and μm(b), that are defined in ISO 11171:2016.