UL 752 Ballistic Levels and GSA Blast Performance Conditions
Below are the most commonly requested charts which depict the performance levels for ballistic and blast solutions as put forth by Underwriters Laboratory and the GSA (General Services Administration), the branch of the US government in charge of leased space for government agencies. These charts offer a quick reference guide to choosing a blast or ballistic system based on the perceived threat.
The diagram below depicts the testing chamber used for testing bomb blast mitigation solutions. The room is 10 feet deep and there is a witness panel on the back wall which makes detecting debris easier. If the window shatters during the test, and the failure is significant enough, there will be glass shards embedded in the witness panel. The chart beneath this diagram explains what the various performance conditions represent.
This video shows an indoor blast chamber known as a shock tube, where we test our various blast products. In this instance, our Riot Glass™ security film was tested by our Los Angeles-based installation dealer, Campbell Window Film.
The video below is an outdoor testing facility using a live "shot" to test for the blast performance of a window system. Window film was also used in this test. Riot Glass™ also produces blast resistant glass and framing systems for new construction, but our Riot Glass™ window films are often used as a retrofit if the existing glass is to remain in place. Our window films are a cost-effective solution and work very well for blast mitigation, as you can see here.