The "Barcode" you're referring to is the "European Article Number" which is an EU standardised system of assigning a unique number to everything that is sold in retail.
The elongated bars are indeed the same pattern as the bar-code for 6 and in keeping with the sheer silliness of the programmers that devised this system, the computer in Brussels that assigns each number is named "The Beast"
And we say Belgians have no sense of humour.
(SCar, Sun 4 Dec 2011, 13:07, 1 reply)

they're not the same pattern as a 6,
on the right-hand side a 6 has a narrow black bar, a narrow white space, a narrow black, and then a wide white space on the right. The two black bars look the same as the elongated bars but the width of the white spaces are part of the pattern as well.

On the left-hand side of the middle, a 6 looks nothing like the elongated bars, narrow white, narrow black, narrow white and then wide black. i.e. the optical inverse of the other 6.
( Moon Girl Technologies horrendous beanbag, Sun 4 Dec 2011, 16:07, closed)