ASTM C 1048 : 2025

1.1This specification covers the requirements for monolithic flat heat-strengthened and fully tempered coated and uncoated glass produced on a horizontal heat-treating system used in general building construction and other applications.

1.2This specification does not address bent glass, or heat-strengthened or fully tempered glass manufactured on a vertical heat-treating system.

1.3The dimensional values stated in SI units are to be regarded as the standard. The units given in parentheses are for information only.

1.4The following safety hazards caveat pertains only to the test method portion, Section 10, of this specification: 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.

1.5This 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.