definitions index
EXPANDED VINYL
WALL COVERING. Wall
covering consisting of a woven textile backing, an expanded
vinyl base coat layer and a nonexpanded vinyl skin coat. The
expanded base coat layer is a homogeneous vinyl layer that
contains a blowing agent. During processing, the blowing agent
decomposes, causing this layer to expand by forming closed
cells. The total thickness of the wall covering is approximately
0.055 inch to 0.070 inch (1.4 mm to 1.78 mm).
FLAME
SPREAD.
The propagation of flame over a surface. FLAME SPREAD INDEX.
A comparative measure, expressed as a dimensionless number,
derived from visual measurements of the spread of flame versus
time for a material tested in accordance with ASTM E 84.
INTERIOR FINISH.
Interior finish includes interior wall and ceiling finish and
interior floor finish.
INTERIOR FLOOR
FINISH. The exposed
floor surfaces of buildings including coverings applied over
a finished floor or stair, including risers.
INTERIOR WALL
AND CEILING FINISH.
The exposed interior surfaces of buildings, including but
not limited to: fixed or movable walls and partitions; toilet
room privacy partitions; columns; ceilings; and interior wainscoting,
paneling or other finish applied structurally or for decoration,
acoustical correction, surface insulation, structural fire
resistance or similar purposes, but not including trim.
SMOKE-DEVELOPED
INDEX. A comparative
measure, expressed as a dimensionless number, derived from
measurements of smoke obscuration versus time for a material
tested in accordance with ASTM E 84.
TRIM.
Picture molds, chair rails, baseboards, handrails, door and
window frames and similar decorative or protective materials
used in fixed applications.
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