2.1.12
Plastics
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NOTE: It is important for the designer to ensure
manufacturers supply quality plastic products made
from post-consumer recycled high density
polyethylenes. High density polyethylene can be
manufactured using post-consumer recycled plastic
resins from products such as milk containers.
Designer should insist on products utilizing
high-density polyethylene. Plastic lumber is
susceptible to both creep and deflection; therefore,
it cannot be used for structural members of
furnishings. To overcome creep and deflection, the
product is increased in volume of material and
dimension.
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Recycled materials shall contain a minimum [85] [_____] percent recycled
post-consumer product and shall conform to EPA requirements in accordance
with Section 01670 RECYCLED / RECOVERED MATERIALS. Recycled materials
shall be constructed or manufactured with a maximum 6 mm 1/4 inch
deflection or creep in any member in conformance with ASTM D 648 and ASTM D
2990. The Contractor shall provide panels and components molded of
ultraviolet (UV) and color stabilized polyethylene, with minimum 6 mm 1/4
inch wall thickness; exposed edges shall be smoothed, rounded, and free of
burrs and points; and the material shall be resistant to fading, cracking,
fogging, and shattering. The material shall be non-toxic and have no
discernible contaminates such as paper, foil, or wood. The material shall
contain no more than 3 percent air voids. Material shall be resistant to
deformation from solar radiation heat gain. Recycled materials to include
plastic lumber will not be used as structural components of site
furnishings.
2.1.12.1
Extruded Acrylic Sheet
ASTM D 4802 [Type I, regular] [Type II, heat resistant] [6] [_____] mm
[1/4] [_____] inch thick, [clear] [____] in color.
2.1.12.2
Cast Acrylic Sheet
FS L-P-391, Item A, [Type I, Heat resistant and ultraviolet light
absorbing] [Type II, heat resistant], 6 mm 1/4 inch thick, [clear] [bronze]
[_____] in color.
2.1.13
Lumber
The Contractor shall provide premium grade wood free of knots; boards with
eased edges and ends; and wood components with factory drilled holes.
Components with holes that will not be filled by hardware or hidden by
other components will be rejected. Wood products shall be selected to
withstand the climatic conditions of the region in which the site is
located. Lumber grades shall meet manufacturers standards of the grading
rules under which they are manufactured. Where no standards exist the
following shall be the minimum acceptable grades for species used.
a.
WWPA G-5 grading rules, [Douglas Fir] [Western Cedars],[Choice &
Btr,] [Select or A & Btr.] per special western red cedar rules.
SECTION 02870
Page 14
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