FSC 9310 JCP A250
LAID-FINISH BOOK, WHITE AND COLORED
Printing Paper February 1, 1999
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Use information: This paragraph is informational only and is not
exclusively definitive of the end use.
For high quality multicolor face and back offset printing of
pamphlets, brochures, invitations, programs, etc., requiring attractive
appearance. Has a rough, soft finish with decorative chain marks running
at right angles to laid lines. High bulk. Printed matter may include
text, line illustrations, halftones up to 150-line screen.
Stock: Groundwood pulp, not to exceed 1 pct.
Note: \1\ Not less than 30 pct postconsumer fiber. Any percent over
30 percentage points, is encouraged, provided that the requirements of
this Standard are met.
Acidity: pH value shall average not less than 6.5 for white paper and
5.0 for colored paper.
Grammage (g/m\2\)..................................... 105 120
Basis weight: 25 by 38 inches, 500 sheets (pounds).. 70 80
A tolerance of 5 pct shall be allowed.
Bursting strength: Average, not less than
(kPa)............................................... 130 150
Equivalent (lb/in\2\)............................... 19 22
Opacity: For white only, average, not
less than (percent)................................. 91 93
No individual specimen shall average less than 89 91
percent............................................
Thickness: Average (mm)............................... 0.165 0.190
Equivalent (inch)................................... 0.0065 0.0075
A tolerance of 0.013 mm (0.0005 inch) shall be allowed.
Paper shall be uniform and shall not vary more than 0.011 mm (0.0004
inch) from one edge to the other.
Chain marks: Shall run parallel to machine direction of the sheet and
match the standard sample.
General appearance: Paper shall conform to the standard sample(s)
adopted by the Government.
Color: The paper in the order (or publication) shall be uniform with a
target brightness of 81 pct for the white paper or as specified. The
color variation shall not exceed DE(CIELAB)=1.0.
For colored stock, paper shall match one of the established
standards or as specified. Colors shall not fade or transfer (rub off)
and shall appear even and uniform on the surface of the sheet. Stock
shall not be 2-sided. Color coordinates for selected standards are
included in Part 3.
Finish: Paper shall have a laid-finish.
Formation: Shall be uniform.
Cleanliness: The dirt count for each side of the paper shall not
exceed 650 specks per square meter. No sample sheet (600 to 650 cm\2\
in size) shall contain more than one defect with an equivalent area of
0.25 mm\2\ or greater.
Sampling and testing: Shall be conducted in accordance with standards in
Part 2, Government Paper Specification Standards.
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Unless otherwise specified, the following is automatically waived when
printing or duplicating is to be accomplished on commercial contract
Sizing: Paper shall be surface- and internal-sized suitable for
satisfactory printing on both sides of the paper on high-speed offset
presses equipped with continuous flow or brush dampening systems.
Color: Shall match the Government's standard sample for color. A
deviation of DE(CIELAB)=3.0 from the color standard for white and 2.0
for colored stocks is allowed. A color difference 1.0 DE unit between
the felt and wire sides is permitted.
Curl: Paper shall lie flat with either no tendency to curl or with a
curl which can be overcome under reasonable working conditions.
Surface: Shall be free from lint, fuzz, or any particles which wil pick,
lift, fluff, or pile on the blanket under normal press conditions.
Size and trim: Sheets: Paper 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 except for sheets 216 by 356 mm (8\1/2\ by 14
inches) or less; then a tolerance of 1 mm (\1/32\ 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 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 the grain on flat paper shall be as ordered.
Pressroom conditions: The bulk of this paper will be used in air-
conditioned pressrooms maintained at 24 deg.C 2 deg.C
and 45 pct 8 pct relative humidity.
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\1\ This requirement may be waived by the ordering agency when
purchasing less than a mill run quantity and so stated in the
procurement document.