JCP A25 Heat-set Web Offset Machine-finish Book February 1, 2008 

Printing Paper FSC 9310 

 
Use Information: This paragraph is informational only and is not exclusively definitive of the end use. 

For simultaneous face and back, blanket to blanket, web offset printing of books, pamphlets, catalog, periodicals, etc. Low 
bulk. Printed matter may include text, illustrations, and halftones up to 150-line screen halftones. 

 
Stock: Groundwood pulp, not to exceed 1%. The total 
lignin content of the paper shall not exceed 3% of the fiber 
weight. 

Note: Not less than 30% postconsumer fiber. Any percent 
over 30 percentage points, is encouraged, provided that 
the requirements of this Standard are met. 

 
Basis weight: 25 by 38 inches, 500 sheets 
(pounds) ЕЕЕЕЕЕЕЕ...ЕЕЕЕЕЕ.... 

 
 35 

A tolerance of +5% shall be allowed. 

 
Bursting strength: Average, not less than 
(lb/in2) ЕЕЕЕЕЕЕЕЕЕЕЕЕЕЕ...Е 

 
 11 

 
Opacity: Average, not less than (percent) Е..Е. 

 84 

No individual specimen shall average less 

than (percent) ЕЕЕЕЕЕЕЕЕЕЕЕЕЕ 

 
 82 

 
Thickness: Average (mils) ЕЕ.ЕЕЕЕЕЕ. 

 2.2 

A tolerance of +0.0003 inch shall be allowed. Paper shall 
be uniform and shall not vary more than 0.0004 inch from 
edge to edge. 

No individual specimen shall exceed (mils) ЕЕ 

 2.8 


General appearance: Paper shall conform to the standard 
sample(s) established by the Government. 

Brightness: Shall target 81% or as specified. 

Color: The paper in the order (or publication) shall be 
uniform and 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 cm2 in size) shall contain more than one defect 
with equivalent area of 0.25 mm2 or greater. 

 
Testing: Shall be conducted in accordance with methods in part 2, Government Paper Specification Standards. The 
acceptance criteria Part 4 shall apply.