GS1 Identification Numbers Field 14 digits(*) GTIN-8    GTIN-12    GTIN-13    GTIN-14    (*) In databases, GS1 identification numbers must be placed right justified in a 14 digit field

Serial Shipping Container Code (SSCC) SSCC

Tips: How is the check digit calculated? Example of a check digit calculation for the 13 digit field

Detailed explanation on how the check digit is calculated:   Digit positions GTIN-8                     N1 N2 N3 N4 N5 N6 N7 N8 GTIN-12             N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 GTIN-13           N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 GTIN-14         N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 SSCC N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 N15 N5% N17 N18 Multiply value of each position by   x3 x1 x3 x1 x3 x1 x3 x1 x3 x1 x3 x1 x3 x1 x3 x1 x3   Accumulated results = Sum Substract the sum value of last digit from 10 = Check Digit

Detailed explanation on how the check digit is calculated: Example of a check digit calculation for the 13 digit field Positions N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 Number without check digit 6 2 9 1 0 4 1 5 0 0 2 1 Step 1: Multiply x x x x x x x x x x x x by 1 3 1 3 1 3 1 3 1 3 1 3 Step 2: Add up = = = = = = = = = = = = results to sum 6 6 9 3 0 12 1 15 0 0 2 3 = 57 Step 3: Substract the sum value of the last digit (7) from 10 = Check Digit (3) Number with check digit 6 2 9 1 0 4 1 5 0 0 2 1 3