EAN-130000000000062   EAN-13 barcode 0000000000062
UPC-A000000000062   UPC-A barcode 000000000062
UPC-E00000602   UPC-E barcode 00000602
Product NameCrown 6 Ft Screed Bar
CategoryHardware: Tools
Amazon.comA Buy on Amazon ~ B0041K8JWQ
SKUT110102
Long DescriptionThe MAGnesium Float Boards provide the lightest material in the industry and will not react with concrete like aluminum screed bars. 6 base allows the Screed King to float in any slump of concrete and our unique Curl Edge helps roll the excess concrete back to the rakers and allows the board to float or ride on forms.
Created07-01-2006
Modified02-20-2017 11:32:02am
MD5de9d7197ec54d94282c682b6fd20e113
SHA256555e5649bbb950ce10cc10e3d476fd52653f4a4997cc061a27023fa27d82f248
Search Googleby EAN or by Title
Query Time0.0004640

ISBN stands for International Standard Book Number. Originally this was a 10 digit number known as ISBN-10, but has been replaced with a 13 digit version known as ISBN-13 (aka EAN-13) to better fit in with the industry standard product numbering system.

The ISBN system offers a unique numbering system for books and publications of various types. ISBN offers 9 identification digits for each book or publication and one check digit. ISBN-13 expands the available number set by doubling the available numbers. You might think that the extra three digits would more than double the available numbers but ISBN is limited within the EAN-13 numbering system and will always start with 978 or 979 as the first three digits, leaving only 9 more digits for the actual identification digits and again the last digit is the check digit.

Any ISBN-10 number can be converted to ISBN-13. Any ISBN-13 number that starts with 978 can be converted back to ISBN-10. ISBN-13 numbers that start with 979 cannot be converted to ISBN-10.

The conversion process from ISBN-10 to ISBN-13 is a rather simple one. Start with the first 9 digits of the ISBN-10 number, place 978 in front and calculate the new check digit using the standard EAN check digit calculation.

If you want to calculate the check digit for ISBN-10, that is done using a MOD-11 calculation that is very different than the EAN check digit process.

ISBN-1-5905-9332-4

Look at the number above and below the barcode. You will see that except for the last digit in the ISBN number, all of the digits exist in the 13 digit version shown under the barcode right after the 978 and just before the new check digit of 5.

Now you can see how easy it is to convert between ISBN-10 and ISBN-13.

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