1. Scope

1.1 This specification covers the requirements for chemically strengthened glass products that originate from flat glass and are used in general building construction, transportation, and other specialty applications, such as copy machine scanners, computer disks, and flat glass screens for television monitors. Techniques such as ion implantation, dealkalization, etch-strengthening, and glaze coatings are specifically excluded.

1.2 Classification of chemically strengthened glass products is based on the laboratory measurements of surface compression and case depth and not on the modulus of rupture (MOR). This specification does not purport to address end-use performance.

1.3 A test method for the measurement of case depth and surface compression is included in Section 8.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

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

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C162 Terminology of Glass and Glass Products

C978 Test Method for Photoelastic Determination of Residual Stress in a Transparent Glass Matrix Using a Polarizing Microscope and Optical Retardation Compensation Procedures

C1036 Specification for Flat Glass

C1279 Test Method for Non-Destructive Photoelastic Measurement of Edge and Surface Stresses in Annealed, Heat-Strengthened, and Fully Tempered Flat Glass

ANSI Standard

Federal Document

Keywords

case depth; chemically strengthened; flat glass; ion exchange; surface compression; Case depth analysis; Chemically-strengthened flat glass; Computer disks; Copy machine scanners; Flat glass--specifications; Glass--specifications; Ion exchange materials/applications; Surface compression; Television equipment;

ICS Code

ICS Number Code 81.040.20 (Glass in building)

DOI: 10.1520/C1422_C1422M-10

ASTM International is a member of CrossRef.

ASTM C1422 / C1422M