FSC 9310 JCP A95
HI-BULK OFFSET (RETURN MAILER)
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 face and back offset printing of return mailers. Printed matter
may include text, line illustrations, halftones up to 150-line screen,
and solid reverses. Complies with U.S. Postal Service minimum caliper
requirement for return mailers.
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.
Grammage (g/m\2\).............................................. 105
Basis weight: 25 by 38 inches, 500 sheets (pounds)........... 70
A tolerance of 10 pct shall be allowed...........
Bursting strength: Average, not less than (kPa)................ 130
Equivalent (lb/in\2\)........................................ 19
Opacity: Average, not less than (percent)...................... 91
No individual specimen shall average less than (percent)..... 89
Thickness: Average, not less than (mm)......................... 0.180
Equivalent (inch)............................................ 0.0070
Paper shall be uniform and shall not vary more than 0.011 mm (0.0004
inch) from one edge to the other.
Any specimen averaging less than 0.180 mm (0.0070 inch) shall be
sufficient cause for rejection of the stock.
Porosity: Average, not to exceed (seconds)..................... 25
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 79 pct. The color variation shall not exceed
DE(CIELAB)=1.0.
Finish and 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.
Pick resistance: Average, each side, not less than 13-A Dennison wax
number.
No individual specimen shall average less than 11-A Dennison wax
number.
Color: Shall match the Government's standard sample for color. A
deviation of DE(CIELAB)=3.0 from the color standard is allowed.
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 will
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.