Data - Coding systems

APN -13 (Australian Product Number)

csbarca1.jpg (12773 bytes) The Australian Product Number (APN) code was developed as a subset of EAN for use in 1978.

[APN-13 sample]

Computing the check digit is as follows;

Position of digit

13

12

11

10

9

8

7

6

5

4

3

2

1

Value of digit

9

3

1

2

3

4

5

6

7

8

9

0

7

The check digit verifies all preceding digits according to the following algorithm; (use diagram above)

Step Action Example
1 Add up digits in the even positions 3+2+4+6+8+0 =23
2 Multiply result by 3 23 * 3 = 69
3 Add digits in odd positions 9+1+3+5+7+9 = 34
4 Add steps 2 and 3 69+34 = 103
5 Calculate the check digit. The smallest integer which needs to be added to the result from step 4 in order to produce a multiple of 10. 103 + 7 = 110,
so check digit is 7

[Rev 21/04/99] 19/5/97 © 1997-99 V/2-Com (Verhaart), P O Box 8415, Havelock North, New Zealand.