ASTM-D8555 2024

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D8555-24 Standard Practice for Conducting a Coating/Lining Detachment Acoustical Sounding (Tapping) Inspection

Published By	Publication Date	Number of Pages
ASTM	2024	2

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Category: ASTM

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Description

ASTM D8555-24

Active Standard: Standard Practice for Conducting a Coating/Lining Detachment Acoustical Sounding (Tapping) Inspection

ASTM D8555

Scope

1.1 This practice covers a method for conducting a qualitative acoustical sounding inspection by lightly tapping newly-applied and previously installed coating/lining systems with a hand-held tool to assess potential detachment from the substrate, prior to visible disbondment. A procedure is prescribed to help ensure reproducibility of the respective sounding methodology. Interpretation of the sound is qualitative and typically requires basic training, for example, the degree of tapping force to use and what to listen for, consistent with the generic type of protective coating or lining system being evaluated.

1.2 High performance coating and lining systems (independent of thickness) can be evaluated for sounding using the tap test, provided excessive tap force that may result in impact damage to otherwise acceptable, sound coatings is avoided.

1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

acoustical sounding inspection; coating detachment testing; tap test;

ICS Code

ICS Number Code n/a

DOI: 10.1520/D8555-24

Additional information

Standard Title	D8555-24 Standard Practice for Conducting a Coating/Lining Detachment Acoustical Sounding (Tapping) Inspection
Published Code	ASTM
Publication Date	2024
Pages Count	2