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WK65 New Practice for Evaluating the Influence of Thermal Insulations on Corrosion of Metals

Developed by Subcommittee: C16.31
See Related Work by this Subcommittee
Date Initiated: 02-07-2003

1. Scope

1.1 This test practice describes procedures for the laboratory evaluation of thermal insulation and
associated materials that may contribute to, or alternatively inhibit, the corrosion of different metals due to soluble ions within the insulation.
1.2 The insulation extraction solutions prepared for use in the test may also be altered by the
addition of corrosive ions to the solutions to simulate contamination from an external source. Ions expected to provide corrosion inhibition may be added to investigate their inhibitory effect.
1.3 Prepared laboratory standard solutions are used as reference solutions and controls.
1.4 Other liquids may be tested for their potential corrosiveness including cooling tower water,
boiler feed, and chemical stocks. Added chemical inhibitors or protective coatings applied to the metal might also be evaluated using the general guidelines of the practice.
1.5 It should be understood that this laboratory practice is not intended to cover all of the possible
field conditions that might contribute to corrosion.
1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in
parentheses are for information only.
1.7 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.

Keywords
corrosion; thermal insulation; CUI; steel; metal; chloride; protective coatings; inhibition

The title and scope are in draft form and are under development within this ASTM Committee.