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 MIL-HDBK-1013/12
8.4.1
Required Information. The following information is
required for the laminated glass environmental analysis
procedure:
a) Exposure to extreme low temperatures
b) Interlayer material type for cross-sections
containing laminated glass
c) Worksheets (see Appendix B):
1) None
<1> Exposed to 0F or Lower
Temperatures? If the cross-
Start
section is exposed to temperatures
below 0F, proceed to <2>.
Otherwise, proceed to <3>.
<2> Consider Air-Gap System.
Consider using an air-gap system
that will minimize exposure of the
<1> Exposed
No
interlayer material to extreme
to 0F or Lower
temperatures. Also, consider
Temperatures?
replacing PVB interlayer with a
urethane interlayer that will remain
Yes
flexible at lower temperatures.
Return to Figure 30.
<3> Exposed to 30F or Lower
<3> Exposed
Temperatures. If the cross-
<2> Consider
No
to 30F or Lower
section is exposed to temperatures
Air-Gap System
Temperatures?
below 30F, proceed to <4>,
Otherwise return to Figure 30.
<4> Consider Urethane Interlayer.
Yes
Consider replacing PVB interlayer
with a urethane interlayer that will
<4> Consider
remain flexible at lower
Stop
Urethane
temperatures. Return to Figure
Interlayer
30.
Figure 33
Process Chart and Description: Laminated Glass Environmental Analysis
Procedure
78
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