Standard Active Last Updated: Oct 04, 2018
ASTM C326-09(2018)

Standard Test Method for Drying and Firing Shrinkages of Ceramic Whiteware Clays

Significance and Use

2.1 The purpose of this test is to obtain values of shrinkage after drying and firing of clays or bodies or both, under various processing conditions to enable designers to determine the proper size of mold or die so as to produce a predetermined size of fired ware.


1.1 This test method covers the determination of linear shrinkage of ceramic whiteware clays, both unfired and fired.

1.2 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.

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.

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Book of Standards Volume: 15.02
Developed by Subcommittee: C21.04
Pages: 2
DOI: 10.1520/C0326-09R18
ICS Code: 81.060.10