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ASTM F689 1997 Edition, October 10, 1997
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Standard Practice for Determination of the Temperature of Above-Ground Plastic Gas Pressure Pipe within Metallic Casings
Includes all amendments and changes through Reapproval Notice , 2011
Page Count:3
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This practice describes a procedure for the determination of the temperature history of above-ground plastic gas pressure pipe encased in a metallic casing. Such temperature changes may be due to ambient air temperature, or solar exposure, or both.

The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

This standard does not purport to address all of the safety concerns, 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.