Publications using ISBN coding system include: books, pamphlets, microforms, braille prints, etc. Before June 65438+1 October1in 2007, ISBN consisted of 10 digits, which were divided into four parts: group number (code of country, region and language), publisher number, book number and inspection code. Starting from 65438+2007 1 October1,a new ISBN was implemented, consisting of 13 bits and divided into five segments.
That is, before the original 10 digit, add the 3-digit EAN (European Commodity Number) book product code "978". ISBN can be used as the retrieval field of online bibliography, thus adding a retrieval way for users.
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ISO, the international organization for standardization, will issue a new standard on June 5438+ 10, 2005. The standard will adopt 13 digital book barcode as the only barcode for books and book-related products. From June 5438+1 October1,all ISBN institutions in the world will only publish 13 ISBN.
Therefore, the publishing house will have two years to complete the upgrade from 10 ISBN to 13 ISBN. During the transition period (2005-2007), publishers are encouraged to provide 13 ISBN and 13 ISBN for the same document according to the 13 ISBN guide published by the International Book Number Organization.
The new ISBN is called "ISBN- 13" internationally. The prefix code 979 will be used as the new serial number of ISBN- 13, and will be activated after the serial number 978 is used up. When ISBN- 13 is used, the barcode of EAN- 13 and the numerical code of ISBN- 13 should be arranged at the same time, and the numerical code of ISBN- 13 should be arranged above the barcode of EAN- 13.
It includes the identifier "ISBN" of the international standard book number, the number and the hyphen "-"between the identification groups of the number. The 13 digits that are the same as the barcode code should be arranged continuously under the barcode (excluding hyphens and spaces), without adding the identifier "ISBN" in front.
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Summary of double reduction work 1
Time flies, and it's another semester in a blink of an eye. Under the background of "double reduction" po