Cannabaceae

An ISBN with an EAN-5 addon (rightmost bars) representing US$44.95.

The EAN-5 is a 5-digit European Article Number code, and is a supplement to the EAN-13 barcode used on books. It is used to give a suggestion for the price of the book.

First Digit Description
5 $ US
6 $ Canada
4 $ New Zealand
3 $ Australia
0 & 1 British pounds

ISBN Encoding – Country and Currency Values Description

Value Definition
50000 NACS Trade
59999 Price for $100 and more
90000 NACS New
90000-98999 For internal purposes (BISG recommend 90000 if no price is given)
99000-99989 Reserved for the industry market
99990-99999 Reserved for National Association of College Stores (NACS)
99990 NACS used
99991 NACS copies

Encoding[edit]

The Encoding of EAN-5 characters is very similar to that of the other European Article Numbers. The only difference is that the digits are separated by 01. The EAN-5 always begins with '01011.' Also, the R-Code is not used.

Encoding of the digits
Digit L-code G-code
0 0001101 0100111
1 0011001 0110011
2 0010011 0011011
3 0111101 0100001
4 0100011 0011101
5 0110001 0111001
6 0101111 0000101
7 0111011 0010001
8 0110111 0001001
9 0001011 0010111

The structure of the barcode is based on the checksum. In order to compute the checksum, multiply each of the digits by either 3 or 9, alternating each time. Then add them and then do a mod 10. So the checksum for 05415 MN is 1 based on the following calculations:

    0*3=0
    5*9=45
    4*3=12
    1*9=9
    5*3=15
  ----------
     81     %    10  = 1

Once you have the checksum digit, you can look up the structure in the following table. Note that the checksum digit is not in the final 5 digits, and is not intended to validate the 5 digit data, but rather to validate the reading of the EAN-5 overall.

Structure of EAN-5
Checksum Structure
0 GGLLL
1 GLGLL
2 GLLGL
3 GLLLG
4 LGGLL
5 LLGGL
6 LLLGG
7 LGLGL
8 LGLLG
9 LLGLG
Example - encoding 52495
Start 5 (G) Separator 2 (L) Separator 4 (G) Separator 9 (L) Separator 5 (L)
01011 0111001 01 0010011 01 0011101 01 0001011 01 0110001

References[edit]

One thought on “Cannabaceae

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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