| Specifications |
Scope
This specification covers rubber flooring, entrance plates, and
step treads for use in transit vehicles. |
Material
The ribbed and smooth floor covering shall be made from a compound
utilizing synthetic rubber and/or natural rubber. The reinforcing
fillers shall be hard clays which are added to impart hard-
ness values of 85 to 95 shore A, and the composition also contains
fibers to give dimensional stability and improved skid resistance
to the flooring. The rubber composition shall be homogenous throughout
the entire thickness. |
Construction
Front and rear step treads shall be of 5/16" gauge of rubber
composition. Ribs shall run perpendicular with a rib increment of
5/8", and same as entrance plate with 3/16" ribbed aisle
covering. The front edge of tread to be 3" yellow or 3"
white nose, as an integral part of the tread. The step treads shall
be 22 gauge metal back, and the metal shall be protected by curing
on .030 rubber backing. |
Entrance
plate shall be 5/16" gauge, slip resistant rubber composition.
The construction shall allow ease of cleaning by design whereby
the ribs shall meet the 3/16" aisle, and then changed to be
perpendicular to the front edge of the entrance plate. The front
edge to be 3" yellow or 3" white nosing as an integral
part of the entrance plate, with 6" stainless steel to be
cured throughout the step edge area. |
| The
marker strip area shall be tapered from 5/16" to 3/16"
gauge, and a 6" stainless steel metal cured to the entrance
plate throughout the marker strip area. Marker strip shall be 2"
yellow or 2" white, however, to be an integral part of the
entrance plate. All area not covered by stainless steel of the entrance
plate shall be sanded. |
| The
3/16" ribbed aisle flooring to be slip resistant rubber composition
with sanded back. |
Tensile
Strength
The tensile strength of the flooring shall not be less than 500
Ibs psi when tested in accordance with ASTME 412 using Die C for
preparing the dumbbell specimens. |
Ultimate
Elongation
The ultimate elongation shall not be less than 25% when tested in
accordance with ASTME 412 using Die C for preparing the dumbbell
specimens. |
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Flexibility
The floor covering shall not crack or show any indication of weakness
when tested in accordance with Method 3111 of FED-STD-501. The mandrel
diameter shall be 1 inch nominal. |
Dimensional
Stability
The floor covering shall not change in linear dimensions more than
plus or minus .035 per linear foot. Stability shall be determined
in accordance with ASTME 1204. |
Fire
Resistance 200 Series Compound
For special transit-flor compound to meet low flame rating the material
shall be tested in accordance with ASTME-162-75, three specimens
shall be tested and averaged. The test results shall be less than
or equal to 25. When tested in accordance with NFPA-253 or ASTM
648 the critical radiant flux is to be > 0.5 w/cm2. This covers
only marbleized color patterns. |
IMPORTANT
NOTICE
Cleaning Instructions Use a non-ionic detergent cleaner,
following the cleaner manufacturer's recommended cleaning procedure.
Then vacuum, mop or squeeze the detergent solution from
the floor before rinsing surface with a solution of 10% Clorox (or
equivalent) in warm water. After floor is dry, it can be buffed
using a high-speed buffer and red 3M polishing pad (smooth only. |
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