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ASTM D3638

2012 Edition, January 1, 2012

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Standard Test Method for Comparative Tracking Index of Electrical Insulating Materials



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Product Details:

  • Revision: 2012 Edition, January 1, 2012
  • Published Date: January 1, 2012
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 5
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

This test method evaluates in a short period of time the low-voltage (up to 600 V) track resistance or comparative tracking index (CTI) of materials in the presence of aqueous contaminants.

The values stated in metric (SI) units are to be regarded as standard. The inch-pound equivalents of the metric units are approximate.

This standard is technically equivalent to the version of IEC Publication 112 cited in 2.2. However, the 2007 version of IEC 60112 Fourth Edition yields numerical CTI values that are very likely to differ significantly from this standard.

This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

*A Summary of Changes section appears at the end of this standard.