Specifications for Web Offset Publications (SWOP) was initiated in 1975 as a response to the printing industry's need for uniform specifications and tolerances to ensure consistency and quality of material in publications.
The GRACoL/SWOP Press Form contains all of the targets required to calibrate and characterize your press and proofing systems to the G7 method.
SWOP® 2007 (11th Edition) is available within a compilation of industry guidelines and specifications for the graphic arts.