2.3.2
Speaking Apertures
Speaking apertures shall allow passage of voice at normal speaking volume
without distortion and shall be fabricated to resist the referenced forced
entry resistant standard for [outdoor] [indoor] use. Speaking aperture
shall be a welded subassembly of the window assembly and shall conform to
the specified requirements for the entire window assembly.
2.3.3
Forced Entry Resistant Glazing Material
Glazing material shall be [glass,] [plastic,] [or] [composite] and shall
conform to applicable requirements ASTM C 1036, ASTM E 1300, and ASTM C 1048.
Glazing materials shall be tested in accordance with the applicable
sections of the following test procedures: ASTM D 905, ASTM D 1003, ASTM F
428, ASTM F 548, ASTM D 4093, and ASTM F 520. Plastic glazing shall be
acrylic plastic sheets, polycarbonate plastic sheets, or approved equal.
Plastic glazing shall be smooth and clear on both sides. [Glazing material
shall be factory installed.] Factory-glazed components shall be covered to
protect them from damage during adjacent finish work.
2.3.3.1
Laminated Glass
Laminated glass shall be all glass laminated construction conforming to
applicable sections of ASTM C 1172. The adhesive interlayer material for
bonding glass to glass shall be chemically compatible with surfaces which
are to be bonded. Materials selected for lamination purposes shall be
tested in accordance with the following testing procedures: ASTM D 905,
ASTM D 1044, ASTM F 735, ASTM D 4093, ASTM F 521, ASTM F 520, and ASTM D
1003. Glass plies used in the lamination shall be [annealed float glass
conforming to Type I, quality q3, Class 1, ASTM C 1036] [or]
[heat-strengthened or fully heat-tempered float glass, Condition A, Type I,
quality q3, Class 1, ASTM C 1048].
2.3.3.2
Acrylic Plastic Sheets
Acrylic plastic glazing sheets shall be for use "as cast" and in stretching
operations with improved moisture absorption resistance conforming to ASTM
D 4802. Acrylic materials shall be tested in accordance with the
applicable sections of the following testing procedures: ASTM D 256, ASTM
D 5420, ASTM D 542, ASTM D 570, ASTM D 635, ASTM D 648, ASTM D 638, ASTM D
696, ASTM D 792, ASTM D 1003, ASTM E 831, ASTM F 791, and ASTM G 155.
2.3.3.3
Polycarbonate Plastic Sheets
Polycarbonate plastic sheet shall be laminated or solid, ultraviolet
stabilized [flame resistant] [high abrasion resistant] sheets shall conform
to ASTM D 3595. Polycarbonate materials shall be tested in accordance with
the applicable sections of the following testing procedures: ASTM D 256,
ASTM D 5420, ASTM D 648, ASTM D 792, ASTM F 735, ASTM D 1003, ASTM D 635,
ASTM D 638, ASTM D 1044, ASTM D 882, ASTM D 1922, ASTM D 570, ASTM F 520,
ASTM E 168, ASTM E 169, ASTM G 155, and ASTM F 791. Polyvinyl butyral
shall not be used in contact with polycarbonate because its placticizer may
craze polycarbonate.
2.3.3.4
Glass/Plastic Laminate Glazing
Glass/plastic laminated glazing materials shall be glass/plastic laminated
construction or glass-clad plastic "sandwich" construction conforming to
applicable sections of ASTM C 1172.
SECTION 11025
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