Verification Tools for 2-Dimensional Bar Codes Introduced by GS1 US

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Test card for use with verifier devices to improve quality of all 2D bar code symbols. Project collaborators included AIM, Ohio University, Pitney Bowes and PIPS.

GS1 Data Matrix Test Card

Responding to companies’ increased adoption and implementation of GS1 DataMatrix and other two-dimensional (2D) bar codes, GS1 US™ today announced the availability of a tool to help users calibrate and test their 2D verifiers, devices that analyze bar-code print quality and standards conformance.

The GS1 Data Matrix Calibrated Conformance Standard Test Card (CCSTC) is a reference standard that contains 2D bar code symbols of exact dimensional and reflectance values. It can be used to determine if a bar code verifier is accurate and operating within published tolerances.

The tool is the result of a collaborative effort that included AIM, Ohio University, Pitney Bowes Inc., and Product Identification & Processing Systems (PIPS), Inc.

The new card complements an existing product line of GS1 US test cards for linear symbologies including UPC-A, EAN-13, ITF-14, GS1-128 and GS1 DataBar.

The CCSTC resulted from a multi-year project launched by GS1 US in conjunction with the Technical Symbology Committee of AIM, the Association for Automatic Identification and Mobility. The project included the development of the 2D Judge™, a unique, high-resolution system designed to precisely measure, analyze, and validate the reflectance and dimensional accuracy of the symbols on the test card.

The 2D Judge was built under the direction of Dr. Kevin Berisso, PhD, Director of the AutoID Lab at Ohio University, part of the Russ College of Engineering and Technology.

Global mailstream technology leader Pitney Bowes leveraged its expertise in processing barcodes to develop the 2D Judge’s image-analysis software and a symbology decoding algorithm based on ISO/IEC standards for Data Matrix.

PIPS was awarded a multi-year agreement by GS1 US to manufacture the CCSTC and operate the 2D Judge for ongoing test-card production and testing.

The GS1 Data Matrix Calibrated Conformance Standard Test Card can be ordered from the GS1 US website at

Media Contact
Jon Mellor
Director, External Affairs for GS1 US
Telephone: +1 609.620.4656
Cell Phone: +1 609.658.6854

About GS1 USTM
GS1 US is a not-for-profit organization dedicated to the adoption and implementation of standards-based, global supply-chain solutions. More than 200,000 businesses in 25 industries in the U.S. and two-million companies worldwide rely on GS1 US for trading-partner collaboration and for maximizing the cost effectiveness, speed, visibility, and traceability of their goods moving around the world. They achieve these benefits through GS1 US solutions based on GS1 global unique-numbering and identification systems, bar codes, Electronic Product Code-based RFID, data synchronization, and electronic information exchange. GS1 US operates the subsidiaries and brands 1SYNC™; BarCodes and eCom™; EPCglobal US™; GS1 Healthcare US; and RosettaNet. It also manages the United Nations Standard Products and Services Code (UNSPSC®) for the UN;


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