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GMW18427

Test Method - Dimensional Stability for PTFE Seal Rings

active, Most Current
Organization: GMW
Publication Date: 1 April 2022
Status: active
Page Count: 5
scope:

Purpose.

This specification describes the testing method for dimensional changes of Polytetrafluoroethylene (PTFE) seal rings when exposed to Automatic Transmission Fluid (ATF) at high temperature (150 °C) and thermal cycle conditions.

Document History

GMW18427
April 1, 2022
Test Method - Dimensional Stability for PTFE Seal Rings
Purpose. This specification describes the testing method for dimensional changes of Polytetrafluoroethylene (PTFE) seal rings when exposed to Automatic Transmission Fluid (ATF) at high temperature...

References

This document references:
ASTM D1675 - Standard Test Methods for Polytetrafluoroethylene Tubing
Published by ASTM on May 1, 2018
These test methods cover procedures for testing polytetrafluoroethylene tubing for use as electrical insulation. NOTE 1—These test methods are similar but not identical to those in IEC 60684–2. The...
This document references:
ASTM D876 - Standard Test Methods for Nonrigid Vinyl Chloride Polymer Tubing Used for Electrical Insulation
Published by ASTM on January 1, 2021
These test methods cover the testing of general-purpose (Grade A), low-temperature (Grade B), and high-temperature (Grade C)2 nonrigid vinyl chloride polymer tubing, or its copolymers with other...
This document references:
9986153 - Factory Fill Automatic Transmission Fluid
Published by GMNA on June 1, 2019
Material Description. This specification covers a petroleum-based fluid intended for use worldwide in GM automatic transmissions as initial and top-off fill meeting GMW16444, DEXRON®-VI...
This document references:
GMW16444 - DEXRON® - VI Automatic Transmission Fluid
Published by GMW on July 1, 2019
Material Description. This specification covers DEXRON® - VI Automatic Transmission Fluid (ATF) primarily for use in General Motors automatic transmissions. This specification describes, in terms of...
This document references:
ISO/IEC 17025 - General requirements for the competence of testing and calibration laboratories
Published by ISO on November 1, 2017
This document specifies the general requirements for the competence, impartiality and consistent operation of laboratories. This document is applicable to all organizations performing laboratory...
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