FSC 7530                                                         JCP J20
                               25% LEDGER
Ledger Paper                                            February 1, 1999

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 open 
forms, ledgers, notices, posters, legal documents, etc., requiring 
execution with pen and ink, erasing quality, and above average 
permanence. Printed matter may include text, line illustrations, 
halftones, and solid reverses.
Stock: Not less than 25 pct cotton or linen fibers; the remainder 
  bleached chemical woodpulp.

    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.

Grammage (g/m \2\).....................         90        120        165
  Basis weight: 17 by 22 inches, 500            24         32         44
   sheets (pounds).....................
  A tolerance of 5 pct shall be allowed.

Bursting strength: Average,
  not less than (kPa)..................        170        230        320
  Equivalent (lb/in \2\)...............         25         34         47

Tearing strength: Average,
  each direction, not less than
  (mN).................................        580        780      1,170
  Equivalent (grams)...................         60         80        120

Thickness: Average (mm)................      0.105      0.135      0.185
  Equivalent (inch)....................     0.0041     0.0053     0.0073
    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 on edge to the other.
Ruling and writing qualities: Lines ruled and characters written with 
  pen and ink shall be clear cut and free from excessive feathering.
Erasing quality: Paper shall retain good ruling, wirting, and typing 
  quality, texture, and surface appearance, without ink spreading after 
  repeated erasures. Samples from the delivery shall show no greater 
  resistance than the standard sample to removal by abrasion of 
  typewritten characters.
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 80 pct. The color variation shall not exceed 
  Finish and formation: Shall be uniform.
  Cleanliness: The dirt count for each side of the paper shall not 
  exceed 250 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.


 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 is allowed.

    For information only, the CIELAB values (Ill D65, 10 deg. observer) 
  of the color standard are


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 
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), 1 mm (\1/16\ inch).
Watermark:\2\ Shall be the seal of the United States, with the word 
  ``recycled,'' one star and the year of manufacture, on a basis of four 
  times on a sheet 432 by 559 mm (17 by 22 inches), one in each quarter. 
  The watermark shall be clear and legible. When viewed from the felt 
  side of the sheet, the design shall appear as illustrated but in 
  proper size. Full size copy will be supplied upon request. (The 165 g/
  m\2\ paper shall not be watermarked.)
                          [Year of manufacture]
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.


    \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. Note, recovered material (cotton/linen) is not a 
postconsumer recovered fiber.
    \2\ The inclusion of the word ``recycled'' in the watermark is 
permitted only with 30% postconsumer recovered fiber. See Style A 
watermark in Part 3.