This specification covers the material characteristics, physical requirements, and sampling method appropriate to the selection of quartz-based dimension stone for general building and structural purposes. Quartz-based dimension stone shall include stone that is sawed, cut, split, or otherwise finished or shaped, and shall specifically exclude molded, cast, or otherwise artificially aggregated units composed of fragments, and also crushed and broken stone. Quartz stones covered here shall be classified according to the free silica content, as follows: sandstone (I); quartzitic sandstone (II); and quartzite (III) The physical property requirements to which quartz-based stones shall adhere to are absorption by weight, density, compressive strength, modulus of rupture, and abrasion resistance.

1.1 This specification covers the material characteristics, physical requirements, and sampling appropriate to the selection of quartz-based dimension stone for general building and structural purposes. Refer to Guides C1242 and C1528 for the appropriate selection and use of quartz-based dimension stone.

1.2 Quartz-based dimension stone shall include stone that is sawed, cut, split, or otherwise finished or shaped, and shall specifically exclude molded, cast, or otherwise artificially aggregated units composed of fragments, and also crushed and broken stone.

1.3 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.

1.4 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.