EAN。 The UCC prefix consists of three digits and is the product identification code assigned by ean international. The prefix of EAN. The UCC in China is 978.
Group area code: a code assigned by the International Standard Book Number Center to represent a language or geographical area, country or group. The range of values is: 0-7, 80-94, 950-995, 9960-9989, 99900-9999, *** 199, which is distributed according to the principle that the larger the publication volume, the shorter the group number. The distribution of ISBN centers is 7 in Chinese mainland, 962 in Hongkong, 972 in Macau and 957 in Taiwan Province.
Publisher number: represents a group or national ISBN center, and is allocated according to the principle that the greater the publishing volume of the publishing house, the shorter the publisher number. Among them, the publishing house number of discontinuous electronic publications is 6 digits.
Title: A book has a number, which is assigned by the publishing house. Publisher number and publication serial number must be * * * 8 digits.
Check code: one digit is fixed. The first 12 bits are calculated by using the weighting algorithm of modulus 10.
Due to the lack of classification identification in the international standard book number, the classification number given according to the category number of Chinese Library Classification (in which the industrial technology category number is the second category number) is added with the serial number of this kind of book to form "a second-class number of book classification". For example, the book Michael Jordan said so published by Hainan Publishing House has ISBN 7-80645-680-5/K.36 printed on the back cover, which is the Chinese standard book number. In the book, 7 is the group number of China, 80645 is the publishing number of Hainan Publishing House, 680 is the title, 5 is the inspection number, K is the classification number of the book China Library Classification, and 36 is the species number.