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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Other important factors to simulate arenormal force contact pressurevelocity, type of motion reciprocating versus unidirectional and environment. These databases can be searched for material couples andtribosystems of interest.
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.
ASTM G – 04 Standard Guide for Measuring and Reporting Friction Coefficients
April Current version: Asuperscript epsilon e indicates an satm change since the last revision or reapproval. In this case an elastic frictionmeasuring system would be appropriate.
Requirements for minimum data and a format for present-ing these data are suggested. This guide is intended to promote the use of thisstandard reporting system and standard friction test methods. If you have any questions about copyright issues, please report us to resolve them. No other units of measurement are included in this standard.
Historical Version s – view previous versions of standard. Current edition approved October 10, We Need Your Support.
Please download to get full document. General friction testing precautions are citedand a prescribed method of recording friction data is recom-mended. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
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G 40— 93 3. Sufficient information on test conditions will be available t115 determine applicability of the friction data to the engineer’s specific needs. The overall goal of this guide is to provide a reporting format that will enable computer databases to be asym established. Link to Active This link will always route to the current Active version of the standard.
When pulling a steelcable over the same roll, it would be more appropriate to use astiff testing system. Plasticizer migration can be the cause. It is hoped that the use of auniform reporting format will provide the basis for the prepa-ration of handbooks and computerized databases.
Their use astk significantly reduce the need for each laboratory to do its own testing. This breakaway force is commonlyused to calculate static friction Fig. Weartest machines are often equipped with sensors to measurefriction forces also. The overall goal of this guide is to provide a reporting formatthat will enable computer databases to be readily established.
Test surfaces that are prone to blocking or interlock-ing of surface features are particularly prone to showing abreakaway force spike. Standard Costing Jul 25, It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Last previous edition G – 93 e 1. These databases can be searched for material couples and tribosystems of interest. To the running of this website, we need your help to support us.
Referenced Documents purchase separately The documents listed qstm are referenced within the subject standard but are not provided as part of the standard. If an application involves materialssuch as friction composites, one of the brake type dynamom-eter tests may be appropriate. Requirements for minimum data and a format for presenting these data are suggested.
A number aztm parentheses indicates the year of last reapproval. G 40 — Friction Wear Force Abrasive Shoe.