FSC 9310 JCP R11
PRESSBOARD, COLORED (TYPE I)
Miscellaneous Board February 1, 1999
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Use information: This paragraph is informational only and is not
exclusively definitive of the end use.
For face and back letterpress printing of filing guides, cloth or
paper-stripped covers, and two-piece covers requiring additional
strength and stiffness for use with bindings such as combs, wire-o, and
spiral. Printed matter may include text, line illustrations, and solid
reverses.
Stock: Not less than 50 pct recovered fiber of which 20 percentage
points shall be postconsumer fiber. Postconsumer fiber, in any
percentage over 20 percentage points, is encouraged, provided that the
requirements of this Standard are met.
Bursting strength: Average, not less
than (kPa)................................. 1,240 1,370 1,520
Equivalent (lb/in\2\)...................... 180 200 220
Thickness: Average (mm)...................... 0.38 0.51 0.64
Equivalent (inch).......................... 0.015 0.020 0.025
A tolerance of 0.03 mm (0.001 inch) shall be allowed on
the 15- and 20-point pressboard. On the 25-point pressboard a
tolerance of -0.03 mm (0.001 inch) and +0.04 mm (0.0015 inch) shall be
allowed.
Density: Shall average 1.4 to 1.6 g/cm\3\.
Surface: Shall be close in texture, hard, smooth, and free from
irregularities and blisters.
General appearance: The color and cleanliness shall conform to the
standard sample(s) adopted by the Government.
Color: The paper board in the order (or publication) shall be uniform.
The color variation shall not exceed DE(CIELAB)=1.0. Board shall match
the established Government standard for blue, light green, red or as
specified. The commercial color standard is applicable, unless
specified that the color shall conform to the Government standard.
Colors shall not fade and shall appear uniform on the surface of the
board.
Sampling and testing: Shall be conducted in accordance with standards in
Part 2, Government Paper Specification Standards. The precision
requirements of the acceptance criteria (Part 4) shall apply.
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Unless otherwise specified, the following is automatically waived when
printing or duplicating is to be accomplished on commercial contract
Curl: Paper board shall lie flat with either no tendency to curl or with
a curl which can be overcome under reasonable working conditions.
Size and trim: Paper board shall be furnished in the size(s) ordered and
shall be flat, trimmed square on four sides with clean smooth edges,
and evenly jogged. A tolerance of 2 mm (\1/16\ inch) shall
be allowed. Successive sheets within any package shall not differ from
each other by more than 0.5 mm (\1/64\ inch). Paper board with the
long dimension 813 mm (32 inches) or less shall be considered square
if the variation does not exceed 1 mm (\1/32\ inch); over 813 mm (32
inches), 2 mm (\1/16\ inch).
Grain: Direction of grain on flat board shall be as ordered.
Pressroom conditions: The bulk of this paper board will be used in air-
conditioned pressrooms maintained at 24 deg.C 2 deg.C
and
45 pct 8 pct relative humidity.