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Barcode Scan Verification

The Barcode Scan Verification tool improves retailer productivity and distributor tracking and tracing by ensuring that your products' barcodes scan the first time, every time. We test whether your product barcodes comply with global standards. We also check your barcode symbols on a variety of point-of-sale scanners to ensure that each one passes the "real-world" test.

GS1 Canada is a certified third-party barcode verifier that complies with the Procedural Guidelines for Certification Services.

To use the Barcode Scan Verification tool, please register for access.

To register, please click the button below for the Services Access page. You can register for any images tool that you do not currently have access to by clicking "Register" in the applicable box and consenting to the Service Agreement.

How to Submit Products for the Barcode Scan Verification Tool

GS1 Canada subscribers in good standing can submit products to be captured for the Barcode Scan Verification tool through the following process:

  1. Click the “Submit Products” button below and sign in using your myGS1 credentials.
  2. Click “Create Service Request” on the next page and agree to the Terms of Use.
  3. Enter the product-level GTINs for each of the products you want captured. The system will check the validity of your GTINs and alert you if there may be an error.
  4. Select the types of images you are requesting. If you have selected all of the services within one of GS1 Canada's economical Trading Partner Bundles, the system will automatically select the applicable bundle for you and save costs.
  5. Fill out the remaining fields and finalize your request.
  6. Arrange a time to send in your products by filling out this webform, including your Service Request Number. A GS1 Canada representative will contact you within three business days to confirm your time.
  7. Download and print your completed request form. Send it, along with two samples of each product being captured, to:

GS1 Canada Images
9200 boul. du Golf
Montreal, QC, H1J 3A1

You can check on the progress of your request through the Service Request interface.

Still not sure how it all works? Check out our step-by-step Requesting a GS1 Canada Content Service learning module on the Learning Zone.

Technical Specifications

Visual Verification

First, we visually identify the barcode symbology. We then verify that the barcode is placed in the proper location on the package, and that the magnification factor, truncation and quiet zones all comply with ISO/ANSI grade guidelines.


Next, we confirm that the human readable portion of the barcode matches the code read by the scanner. We also compare the Company Prefix Licence on the barcode with those in GS1 Canada's database to ensure accuracy and verify authenticity.

Barcode Analysis

With a barcode print quality analyzer, we test the Scan Reflectance Profile (SRP) grading method recommended by the ANSI Barcode Print Quality Guidelines. The SRP's six test parameters include:

  • Edge contrast
  • Symbol contrast
  • Reflectance
  • Modulation
  • Decodability
  • Defects

Symbologies Tested

  • UPC
  • ITF (interleave 2 of 5)
  • GTIN-12 (UPC-A or 12 digits)
  • GTIN-8
  • (UPC-E or zero suppressed, 8 digits and EAN 8)
  • GTIN-13 (13 digits)
  • GTIN-128 (printing quality analysis but no certificate issued for this symbol)
  • GS1 DataBar
  • GS1 DataMatrix
  • GS1 QR Code

Certificate of Conformity

Once the information has been collected, the certificate is created. The barcode will receive a grade based on the test results defined by the SRP. The grades are:

  • A or 3.5 to 4.0
  • B or 2.5 to 3.4
  • C or 1.5 to 2.4
  • D or 0.5 to 1.4
  • F or less then 0.5


If a code fails, a last analysis is performed consisting in troubleshooting the issue. A comment will be added to the certificate providing some direction and suggestions to help the client correct the situation.

For More Information

Engage with GS1 Canada's Learning Zone for education resources and training guides.

Contact GS1 Canada at 1.800.567.7084 or