(2) or 16 CFR 1201, paragraph 1204.4 (e) (1) (ii) shall not constitute
passing criteria.
2.2.2
Tensile Strength
The fragment retention film samples tested shall exhibit a minimum tensile
strength at break of 172.4 MPa 25,000 psi when tested in accordance with
ASTM D 882. Method A, Static Weighing, Constant Rate of Grip Separation
Test, shall be used to conduct this test. The rate of grip separation
shall not exceed 0.2 mm/s 1/2 inch per minute.
2.2.3
Peel Strength
Testing shall be conducted following 1,200 hours accelerated weathering
exposure. The fragment retention film shall exhibit a minimum peel
strength of 930 N/m 5.3 pounds/inch for 0.10 mm 0.004 inch thick film and
790 N/m 4.5 pounds/inch for 0.18 mm 0.007 inch thick and thicker film when
tested in accordance with ASTM D 3330/D 3330M. Method A shall be used to
conduct the tests. A glass substrate shall be used and a maximum dwell
time of 45 days is permitted.
2.2.4
Surface Abrasion
The fragment retention film shall exhibit a change in haze not to exceed
3.2 percent following 100 turns, using 500-gram weights on a CS 10F
abrasive wheel when tested in accordance with ASTM D 1044.
2.2.5
Flame Spread and Smoke Density
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Note: The designer may delete the requirement for
flame spread and smoke density index if not required
by the project.
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The fragment retention film shall exhibit a flame spread index not
exceeding 25 and a smoke density index not exceeding 100 when tested in
accordance with ASTM E 84. For the test, the specimen shall be mounted to
6.4 mm 1/4 inch thick tempered glass which conforms to the requirements of
ASTM C 1048, Kind FT, Type I, Class 1, Quality q3.
PART 3
EXECUTION
3.1
SURFACE PREPARATION
The glass surface to which the fragment retention film is to be applied
shall be cleaned of paint, foreign compounds, smears, and spatters. After
the initial cleaning, the surface to receive the film shall be further
cleaned in accordance with the film manufacturer's instructions.
3.2
APPLICATION
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NOTE: Greater protection for occupants from flying
glass caused by blast loads is achieved by applying
film such that it extends edge to edge of the sheet
and into the bite of the frame. Some gaskets and
compounds can dissolve the film surface, the
adhesive, or the metallic coating interlayer of
SECTION 08850
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