Standard Active Last Updated: Feb 09, 2024 Track Document
ASTM C1943-24

Standard Test Method for Grout Retention Properties of Ceramic Tile

Standard Test Method for Grout Retention Properties of Ceramic Tile C1943-24 ASTM|C1943-24|en-US Standard Test Method for Grout Retention Properties of Ceramic Tile Standard new BOS Vol. 15.02 Committee C21
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Significance and Use

4.1 This test method provides a means for testing combinations of tile, grout, installation materials and installation practices to determine grout retention behavior. This method can be used by installers to determine if installation materials and techniques are synergetic; by tile and grout manufacturers to evaluate product performance and as a forensic tool to determine if an installation system was appropriate.

FIG. 1 Tile That Has Retained Grout After Testing

Tile That Has Retained Grout After Testing

4.2 It is acceptable for other (mainly unglazed) ceramic tile surfaces to have some grout retention if it is light and evenly distributed.


1.1 This test method covers the testing and evaluation of grout retention on glazed and unglazed ceramic tile surfaces and is intended to give the user a uniform procedure to make a comparative assessment of specific tile and grout systems.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.

1.3 This qualitative method is intended to be used to visually detect abnormal grout retention for a specific tile and installation material system installed in a specified way.

1.4 This method is intended to evaluate the specific grout and tile system specified and is not intended for test results to encompass other tile and grout combinations.

1.5 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.

1.6 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.

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Book of Standards Volume: 15.02
Developed by Subcommittee: C21.06
Pages: 5
DOI: 10.1520/C1943-24
ICS Code: 91.100.23