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Standard
| GB/T 7156-2003 Codes and identification of secret level for documents (English Version) |
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Detail of GB/T 7156-2003
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| Professional Classification |
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Introduction of GB/T 7156-2003
本标准规定了文献保密等级的确定、变更和解密的原则，规定了文献保密期限、文献保密等级代码和标识。本标准适用于对文献保密等级的标识，以促进文献信息的管理、交换和使用。
Contents of GB/T 7156-2003