The U. S. Technical Advisory Group (TAG) to ISO/TC 131- fluid power systems has been working on a number of projects in March. Following is a sampling of current projects underway in the committees:
Published Standard ISO 18413:2015 – Hydraulic fluid power — Cleanliness of components — Inspection document and principles related to contaminant extraction and analysis, and data reporting. This International Standard specifies the content of an inspection document that specifies both the cleanliness requirement for the specified hydraulic fluid power component and the inspection method to be used for evaluating its cleanliness level. In addition, guidelines for relevant extraction methods and analysis methods are given.
New Work Item Proposal to Revise ISO 6162-2 – 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. This part of ISO 6162 gives general and dimensional specifications for flanged heads, split flange clamps (FCS and FCSM), one-piece flange clamps (FC and FCM), ports and mounting surfaces applicable to four-screw, split and one-piece flange clamp type tube connectors and hose fittings for use at a pressure of 42 MPa (420 bar ). It also specifies the dimensions of the seals to be used, as well as the grooves that house the seals. At a recent TC 131 meeting it was determined that a change in the location of the identification groove was needed.
Systematic Reviews – Every five years ISO Standards are reviewed by their technical subcommittees to ensure that they are current. The U.S. TAG to SC 4 – Connectors is currently reviewing 12 such ISO Standards for 2015. The individual Standard is either approved for another five years, recommended for a revision or withdrawn.
It is important for the fluid power industry to provide end users with a set of requirements, specifications and guidelines that can be used consistently to ensure that materials, products, processes and services are being used for the purpose they were made. Projects like those listed above are good examples of the work being done by the fluid power technical experts.
To learn about NFPA and the ISO Standards (draft, published, or withdrawn) relevant to fluid power go to NFPA’s Standards Locator.
For more information on how you can get involved in the development of fluid power Standards, please contact Denise Rockhill.
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