Difference btwn Cat I and Cat II Safe...

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