Volume 46, Issue 5 - June 2011


New Interpretations Clarify ANSI Z97.1

Two new technical interpretations have been issued for the 2009 version of the ANSI Z97.1 standard. The first, TI-04.11.001, clarifies the language related to laminated and organic glass weathering of colored products, indicating that testing for clear products qualifies products with colored components. The second, TI-04.11.002, resolves some vagueness around the utilization of the center punch fragmentation test for tempered safety glass and the particle count.

The TI-04.11.001 interpretation notes that “when the thinnest construction of all components of laminated and organic coated glasses have passed the applicable weathering requirements and subsequent evaluation … thicker components and colored components will be deemed qualified for weathering compliance.”

TI-04.11.002 elaborates on the allowed particles, saying, “no one particle shall be longer than 4 inches excluding an area of radius 4 inches centered on the impact point and a border of 1 inch around the entire perimeter/edge of the test specimen.”

Both interpretations are available through the ANSI Z97.1 website.

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