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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 20000.7-2006 |
Guide for standardization―Part 7: Guidelines for the justification and development of management system standards 标准化工作指南 第7部分: 管理体系标准的论证和制定 |
China National Standards justification |
 English PDF |
| GB/T 9405-1995 |
Performance and test methods of the third order digital multiplex equipment operating at 34368 kbit/s and using positive justification 34368kbit/s 正码速调整三次群数字复用设备技术要求和测试方法 |
China National Standards justification |
English PDF |
| GB/T 7254-1995 |
Performanceand methods of the second order digital multiplex equipment operating at 8448 kbit/s and using positive justification 8448 kbit/s正码速调整二次群数字复用设备技术要求和测试方法 |
China National Standards justification |
English PDF |
| GB/T 11324-1995 |
Performance and test methods of the fourth order digital multiplex equimpent operatingat 139264 kbit/s and using positive justification 139264kbit/s正码速调整四次群数字复用设备技术要求和测试方法 |
China National Standards justification |
English PDF |
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