13-140-070 Stone masonry units – Standards.

   Stone masonry units shall conform to the following ASTM standards:

   Marble dimension stone (exterior) – C503-89

   Limestone dimension stone – C568-89

   Granite building stone – C615-85

   Quartz-based dimension stone – C616-89

   Slate dimension stone – C629-89

(Added Coun. J. 12-15-93, p. 43920)