Committee C18 on Dimension Stone
To promote knowledge to stimulate research, and to develop specifications, methods of test, definitions and nomenclature, and recommended practices relating to dimension stone. The term "dimension stone" or the word "stone" as applied to this Committee and used herein shall refer only to naturally occurring stone used as units or dimension blocks. Specifically, the term shall exclude such natural stone as is processed for use as crushed stone, fines, or powder for any purpose, or as aggregate or chemical raw materials. Development of specifications for construction practice using dimenstion stone falls under the jurisdiction of the committee. Coordination and consultation, when advisable, will be maintained with other organizations and technical committees. The principal materials included in the scope are those varieties of stone defined in ASTM C 119 "Definitions of Terms Relating to Dimension Stone" and particularly those used as building materials.