This standard specifies performance requirements for hollow load-bearing concrete masonry units made from Portland cement, water and mineral aggregates with or without the inclusion of other materials. It covers three weight classifications of the concrete masonry units: (a) normal weight; (b) medium weight; and (c) lightweight.

• Year of Declaration: 2003
• Reference: Reapproved 2018
• Number of Pages: 16
• Code: GYS 215
• Version:
• ICS Number: 91.100.30