UPC encodation verifier

A method for verifying the accuracy of an encoded linear bar code symbol comprising in combination a template and an encodation worksheet, said template comprising a substantially rigid and transparent planar sheet having an image printed thereon, said image consisting of a plurality of equally spaced dark bars and intervening light spaces corresponding to the modules of a linear bar code symbol, said encodation worksheet comprising a printed sheet including a character chart of the module representation of the numeric equivalents of a linear bar code symbol, a formula for determining the check character of said bar code symbol and a bar chart consisting of two columns divided into equally sized spaces corresponding to the modules of said bar code symbol, said columns comprising a chart column and a verifier column, said method comprising the steps:

• a. translating the numeric equivalent of an encoded linear bar code symbol into its graphic representation with the aid of the character chart on said encodation worksheet;
• b. entering the graphic representation of the translation made in step (a) in the chart column of the bar chart on said encodation worksheet;
• c. orienting the template in superimposed relation to said encoded linear bar code symbol and comparing the image on said template with the modules of said bar code symbol;
• d. entering the graphic representation of the comparison made in step (c) in the verifier column of the bar chart on said encodation worksheet;
• and,
• e. correlating the graphic representations of the encoded bar code symbol as entered in the chart and verifier columns of said encodation worksheet in order to verify the accuracy of said encoded symbol.