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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Requirements for minimum data and a format for presenting these data are suggested. Link to Active This g11 will always route to the current Active version of the standard. G 40— 93 3.
Historical Version s – view previous versions of standard. We are always happy to assist you. To the running of this website, we need your help to support us.
These databases can be searched for material couples andtribosystems of interest. We Need Your Support. Other important factors to simulate arenormal force contact pressurevelocity, type of motion reciprocating versus unidirectional and environment. Please download to get full document. Asuperscript epsilon e indicates an editorial change since the last revision or reapproval.
Friction Wear Force Abrasive Shoe. Each triboelementcontains one or more tribosurfaces.
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. All materials on our website are shared by users. We are nonprofit website to share and download documents. No other units of measurement are included in this standard. General friction testing precautions are citedand a prescribed method of recording friction data is recom-mended. April Current version: The usual manifestation is a cycling decrease andsubsequent increase in the friction force as sliding proceeds Fig.
The appropriate device to use is the onethat closely simulates a tribosystem of interest. Summary of Guide 4. It is hoped that the use of auniform reporting format will provide the basis for the prepa-ration of handbooks and computerized databases. Originallypublished as G – This guide is intended to promote the use of thisstandard reporting system and standard friction test methods.
Last previous edition G – 93 e 1. Plasticizer migration can be the cause.
Their use will significantly reduce the need for each laboratory to do its own testing. This breakaway force is commonlyused to calculate static friction Fig. Current edition approved October 10, These databases can be searched for material couples and tribosystems of interest.
Requirements for minimum data and a format for present-ing these data are suggested. It is hoped that the use f115 a uniform reporting format will provide the basis for the preparation of handbooks and computerized databases. Weartest machines are often equipped with sensors to atsm forces also.
The overall goal of this guide is to provide a reporting format that will enable computer databases to be readily established.
Standard – Standard Guide for Measuring and Reporting Friction Coefficients ASTM G –
G 40 — Sufficient information on test conditions will be available to determine applicability of the friction data to the engineer’s specific needs. The overall goal of this guide is to provide a reporting formatthat will enable computer databases to be readily established.
If you have any questions about copyright issues, please report us to resolve them. The use of the g1155 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.
Standard Costing Jul 25, Blocking is a term used to describe thetendency of some plastic materials to stick to each other afterlong periods of contact. It is the y115 of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
ASTM G – 04 Standard Guide for Measuring and Reporting Friction Coefficients
Test surfaces that are prone to blocking or interlock-ing of surface features asgm particularly prone to showing abreakaway force spike. When pulling a steelcable over the same roll, it would be more appropriate to use astiff testing system. A number in parentheses indicates the year of g1155 reapproval. Any of the listed tests or other acceptedtests may be used. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Thank you for visiting our website and your interest in our free products and services.
In this case an elastic frictionmeasuring system would be appropriate.