Standardization development continues in the field of fluid power systems and components. TC 131, the technical committee directly responsible for fluid power, has 224 published ISO standards to date. There are 49 standards currently under development. The following ISO standards were published in the past six months:
Subcommittee 4 – Connectors (couplings)
Hydraulic fluid power — Flange connections with split or one-piece flange clamps and metric or inch screws — Part 2: Flange connectors, ports and mounting surfaces for use at a pressure of 42 MPa (420 bar), DN 13 to DN 76
Connectors for fluid power and general use — Assembly instructions for connectors with adjustable stud ends and O-ring sealing
Subcommittee 5 – Control products (valves)
Pneumatic fluid power — Compressed air filters — Part 1: Main characteristics to be included in supplier’s literature and product-marking requirements
Subcommittee 6 – Contamination control (filters)
Hydraulic fluid power — Method for evaluating water separation performance of dehydrators
Guidelines for determining the required cleanliness level (RCL) of a system.
Questions about recently published fluid power standards? Interested in getting involved in standards? Visit NFPA’s web site (https://www.nfpa.com/home/standards/About-Standards.htm) or contact Denise Husenica at firstname.lastname@example.org.