Standards GB - Chinese national standards - Page 5103

Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level. Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document

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GB/T 7154.2-2003/IEC 60738-1-2:1998

Standard published on 7.1.1987

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GB/T 7154.3-2003

Thermistors--Directly heated positive step-function temperature coefficient--Part 1-3: Blank detail specification--Inrush current application--Assessment level EZ

Standard published on 24.1.2003

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GB/T 7154.4-2003

Thermistors--Directly heated positive step-function temperature coefficient--Part 1-4: Blank detail specification--Sensing application--Assessment level EZ

Standard published on 24.1.2003

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GB/T 7156-2003

Codes and identification of secret level for documents

Standard published on 25.7.2003

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