Tempering Division Gets Down to Business
The Tempering Division met on Wednesday during the Glass Association
of North America's (GANA) Fall Conference in Dallas.
The division's Optical Distortion Subcommittee reviewed a draft
of its presentation "An Overview of Optical Distortion and
Roller Wave Measurement in Glass."
"The good news is, we got a lot of good comments back, bad
news it took us this long to get the feedback," commented Joel
Feingold of Strainoptic Technologies Inc., subcommittee chair.
And, indeed, there was lots of feedback to discuss during the meeting.
The question quickly came up as to the intended audience for the
presentation. While it was suggested that it would be used as an
internal association resource for continuing education at events
such as the Glass Fabrication and Glazing Educational Conference,
many committee members agreed that the presentation is not as yet
ready for further distribution, such as for training new employees
on distortion. Among the concerns of the presentation was that it
did not rely heavily enough on recommendations set forth in ASTM
C1048, Standard Specification for Heat-Treated Flat Glassor,
perhaps, too heavily.
"We need to get our head out of the sand
C1048 as it's
drafted today is insufficient for today's problems," commented
Others worried that what is intended as merely an educational presentation
set what could be construed as standard requirements for how to
inspect for optical distortion and roller wave measurement.
As division chair Cliff Monroe of Arch Aluminum & Glass explained,
"I think it's setting a precedent for what everyone should
be processing their glass under
you don't process 1/8-inch
glass the same way you process 6-mm
it's indicating a level
of evaluation that could steer the wrong parties in the wrong direction
and make it difficult to you to sell or market your product in the
field. There's a lot of innuendo [about the equipment you need to
Feingold agreed to make some revisions to the presentation prior
to the next meeting, February 12-15, 2009, at the Palms Casino Resort
in Las Vegas, to see if these differences can be resolved.
Also during the division's meeting the Marketing Committee had
the opportunity to review a draft of the tempering video during
their meeting. Each division is producing an educational video on
its product; videos already exist on producing float glass, mirror
and laminated glass with PVB (CLICK
HERE to view those videos). Some group members expressed concern
that the video shows only one technique for producing tempered glass
so that while it would be suitable to show to architects and customers,
it could not be used for training employees on tempering. The video
will be sent out to the committee members for further review, so
that dialogue can be strengthened for technical information.
Committee members also announced that the Design in Glass Awards
for 2009 had been canceled due to lack of funds and submissions.
After an update on its recently released Caring for Today's
Architectural Glass position paper, the Construction Subcommittee
declared an executive committee, closing the meeting to committee
members only, in order to provide an update on the group's interaction
with the window cleaning industry and, more specifically, the International
Window Cleaning Association.
During Glass Week in February, the subcommittee had discussed ways
to get the word out about the damage caused on glass by metal scrapers.
HERE to read that story.
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