Construction Specifications Institute Masterformat division for Cast Stone Masonry is 04 72 00
This number is used to specify what type of product is used in the construction industry
MasterFormat™ is the specifications-writing standard for most commercial building design and construction projects in North America. It lists titles and section numbers for organizing data about construction requirements, products, and activities
Many of the products that come under 04 72 00 fall under the ASTM C1364 standard.