ISO. Second edition. Corrected version. Fluid power systems — O-rings —. Part 3: Quality acceptance criteria. Transmissions. Norm DIN ISO defines permissible shape and surface deviations in O- rings. Permissible tolerances are classified into grade levels. Grade N O-rings are. ISO FLUID POWER SYSTEMS – O-RINGS – PART 3: QUALITY ACCEPTANCE CRITERIA.

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For undated references, the latest edition of the referenced document including any amendments applies. All dimensions in mm. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested.

BS ISO 液压流体动力.O型环.质量验收标准 – MBA智库文档

Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. ISO consists of the following parts, under the general title Fluid power systems — O-rings: Ido activate JavaScript for proper execution. Inside diameters and cross sections, tolerances and size-identification codes — Part 2: It presents the UK view on standards in Europe and at the international level.

Various BSI electronic information services are also available which give details on all its products and services.

Shape and Surface Deviations According to DIN ISO 3601-3

Deviations of the curved cross section are permissible when the flattened area transitions into the curve of the circular isi section smoothly, and the cross section still falls within the permissible tolerances. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Combined Flash combination of offset, flash and parting line projection.


Information regarding online access to British Standards via British Standards Online can be found at http: Contact the Information Centre.

Standards and sizes

Anti-extrusion devices back-up rings Li ce ns ed c op y: Other methods should be agreed between the manufacturer and the user. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.

Inside diameters, cross-sections, tolerances and size identification code ISOFluid power systems and components — Vocabulary ISOAerospace fluid systems — O-rings, inch series: Grade S O-rings are available upon request. It supersedes BS Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 11 and a back cover. A list of organizations represented on this committee can be obtained on request to its secretary.

By submitting the form, you consent to the data 36011-3 described therein. This part of ISO also defines and classifies surface imperfections on O-rings and specifies maximum acceptable limits for these imperfections.


It is incorporated by Royal Charter. Standards are also available from the BSI website at http: Draft International Standards adopted by the technical committees are isl to the member bodies for voting.

Testing of components to meet performance requirement provides users a basis of assurance for determining design application and for checking component compliance with their stated requirements. The main task of technical committees is to prepare International Iao. For details of these and other benefits contact Membership Administration.

This publication does not purport to include all the necessary provisions of a contract. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Users are responsible for its correct is. The following table defines shape and surface deviations in o-rings per grade levels N and S 1 According to which value is the larger.

This part of ISO is also applicable to O-rings to be used in aerospace construction.