ASTM G115 PDF

ASTM G – Free download as PDF File .pdf), Text File .txt) or read online for free. ASTM G 2. Referenced Documents ASTM Standards: B Test Method for Dynamic Coefficient of Friction and. Wear of Sintered Metal Friction Materials Under Dry. ASTM G Standard Guide for Measuring and Reporting Friction Coefficients.

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General friction testing precautions are citedand a prescribed method of recording friction data is recom-mended. Last previous edition G – 93 e 1.

Standard – Standard Guide for Measuring and Reporting Friction Coefficients ASTM G –

The appropriate device to use is the onethat closely simulates a tribosystem of interest. Weartest machines are often equipped with sensors to measurefriction forces also. The usual manifestation is a cycling decrease andsubsequent increase in the friction force as sliding proceeds Fig. The overall goal of this guide is to provide a reporting format that will enable computer databases to be readily established. Friction Wear Force Abrasive Shoe. Link to Active This link will always route to the current Active version of the standard.

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If you have any questions about copyright issues, please report us to resolve them. Standard Costing Jul 25, G 40 — Thank you for visiting our website and your interest in our free products and services. Test surfaces that are prone to blocking or interlock-ing of surface features are particularly prone to showing abreakaway force spike.

Standard Guide for Measuring and Reporting Friction Coefficients

April Current version: If an application involves materialssuch as friction composites, one of the brake type dynamom-eter tests may be appropriate. In addition, elastic beams containing straingages may produce different friction responses than a more rigid load celleven if used on the same friction testing machine.

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Requirements for minimum data and a format for presenting these data are suggested. Sufficient information on test conditions will be available to determine applicability of the friction data to the engineer’s specific needs. The use of the suggested reporting form will increase the long-term usefulness of the test results within a given laboratory and will facilitate the exchange of test results between laboratories.

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The overall goal of this guide is to provide a reporting formatthat will enable computer databases to be readily established.

No other units of measurement are included in this standard. Asuperscript epsilon e indicates an editorial change since the last revision or reapproval.

Originallypublished as G – G 40— 93 3. Their use will significantly reduce the need for each laboratory to do its own testing.

ASTM G115-10.pdf

Current edition approved October 10, Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Blocking is a term used to describe thetendency of some plastic materials to stick to each other afterlong periods of contact. Plasticizer migration can be the cause. Historical Version s – view previous versions of standard.

Each triboelementcontains one or more tribosurfaces. We Need Your Support.