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4specs Discussion Forum » Archive - Product Discussions #5 » Difference btwn Cat I and Cat II Safety Glazing « Previous Next »

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Jerome J. Lazar, RA, CCS, CSI, SCIP
Senior Member
Username: lazarcitec

Post Number: 989
Registered: 05-2003
Posted on Tuesday, September 03, 2013 - 07:33 pm:   Edit PostDelete PostPrint Post

Can anyone offer a simple answer to this question.
Ronald L. Geren, AIA, CSI, CCS, CCCA, SCIP
Senior Member
Username: specman

Post Number: 1143
Registered: 03-2003


Posted on Tuesday, September 03, 2013 - 07:53 pm:   Edit PostDelete PostPrint Post

From my Code Corner article on glass and glazing:

"Glass with a Category I rating (Class B per ANSI Z97.1) has passed the test when the impactor is raised 18 inches (measured vertically) above the impactor’s position at rest. A Category II rating (Class A per ANSI Z97.1) is given to glass when the impactor is dropped from a height of 48 inches."
Ron Geren, AIA, CSI, CCS, CCCA, SCIP
www.specsandcodes.com
Jerome J. Lazar, RA, CCS, CSI, SCIP
Senior Member
Username: lazarcitec

Post Number: 990
Registered: 05-2003
Posted on Tuesday, September 03, 2013 - 08:00 pm:   Edit PostDelete PostPrint Post

Thanks Ron, I should have looked on your web site, thanks for responding so quickly.

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