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Offset Map, Lithographic–Finish

By Government Printing Office

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Book Id: WPLBN0000175509
Format Type: PDF eBook
File Size: 0.2 MB
Reproduction Date: 2005
Full Text

Title: Offset Map, Lithographic–Finish  
Author: Government Printing Office
Language: English
Subject: Government publications, Legislation., Economic & political studies
Collections: Government Library Collection, Government Printing Office
Publication Date:
Publisher: Government Printing Office

Government Reference Publication

Excerpt: Use information - This paragraph is informational only and is not exclusively definitive of the end use. For high quality multicolor offset printing of maps, folded inserts, etc. Printed matter may include text, line illustrations, and halftones up to 150-line screen. Stock: 100 pct bleached chemical woodpulp. The use of melamineformaldehyde or any material that releases formaldehyde into the atmosphere at concentration of 0.1 ppm or greater shall not be permitted in the manufacture of this paper. 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 4.8. Grammage (g/m2) ... 60 75 90 105 Basis weight: 25 by 38 inches, 500 sheets (pounds) ... 40 50 60 70 A tolerance of +/-5 pct shall be allowed. Folding endurance: M.I.T., average, each direction, not less than (double folds) ... 30 30 35 40 Tearing strength: Average, each direction, not less than (mN) ... 290 390 490 580 Equivalent (grams) ... 30 40 50 60 Opacity: Average, not less than (percent) ... 88 89 91 92 No individual specimen shall average less than (percent) ... 86 87 89 90 Thickness: Average (mm) ... 0.075 0.090 0.105 0.125 Equivalent (inch) ... 0.0030 0.0035 0.0041 0.0049 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. Water resistance: Average not less than (seconds) ... 20 25 30 35 Smoothness: Average, each side (units) ... 140 140 140 140 to 80 to 80 to 80 to 80 Writing quality: Characters written with ball point and felt tip pens shall be clear cut and free from excessive feathering. Erasing quality: Paper shall retain good ruling, writing, and typing quality, texture, and surface appearance, without ink spreading after repeated erasures. After erasures and burnishing, texture shall permit redrawing of sharp lines in ink. Blocking: Sheets shall not stick together after being wet with water and then allowed to dry in contact with other sheets of the same paper. 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 brightness not less than 81 pct. The color variation shall not exceed DE(CIELAB)=1.0. Formation: Shall be uniform. Cleanliness: The dirt count for each side of the paper shall not exceed 100 specks per square meter. No sample sheet (600 to 650 cm2 in size) shall contain more than one defect with an equivalent area of 0.25 mm2 or greater. Sampling and testing: Shall be conducted in accordance with standards in Part 2, Government Paper Specification Standards.

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