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Understanding Adhesion Test Data - The Importanceof Round Robin Evaluations

Understanding Adhesion Test Data - The Importanceof Round Robin Evaluations
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Current ASTM standards require a statement of precision and bias as part of the standard test method. This statement allows a user to properly interpret results obtained by a competent operator. Development of these statements typically involves an interlaboratory study, commonly referred to as a round-robin test.  

Product Number: 41208-455-SG
Author: Lloyd Smith, J. Peter Ault
Publication Date: 2008
Industry: Coatings
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$20.00
$20.00

Current ASTM standards require a statement of precision and bias as part of the standard test method. This statement allows a user to properly interpret results obtained by a competent operator. Development of these statements typically involves an interlaboratory study, commonly referred to as a round-robin test.  The paper presents the results of an interlaboratory study (ILS) on ASTM D4541, Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers. A key finding of the study is that results vary depending on the test instrument used. In order to properly report on and interpret the test data, one needs to identify the instrument used. When the instrument is known, ASTM data on precision and bias allows a user to properly interpret the test data. The paper also discusses the process used by ASTM for conducting an ILS, and the round-robin tests currently under development by ASTM D01.46 – Industrial Protective Coatings.

Current ASTM standards require a statement of precision and bias as part of the standard test method. This statement allows a user to properly interpret results obtained by a competent operator. Development of these statements typically involves an interlaboratory study, commonly referred to as a round-robin test.  The paper presents the results of an interlaboratory study (ILS) on ASTM D4541, Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers. A key finding of the study is that results vary depending on the test instrument used. In order to properly report on and interpret the test data, one needs to identify the instrument used. When the instrument is known, ASTM data on precision and bias allows a user to properly interpret the test data. The paper also discusses the process used by ASTM for conducting an ILS, and the round-robin tests currently under development by ASTM D01.46 – Industrial Protective Coatings.

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