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 DE(CIELAB)=1.0. 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 L*=94.0 a*=-0.5 b*=4.0 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), 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.