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Standards GB - Chinese national standards - Page 161

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 12162.4-2010/ISO 4037 4:2004

Standard published on 10.11.2010

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GB/T 12163-1990

Lead shielding units for 50 and 100 mm thick walls used for protection against ionizing radiation

Standard published on 12.1.1990

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GB/T 12163-2026

Lead shielding units for 50mm and 100mm thick walls used for protection against ionizing radiation
Execute Date: november 2026

Standard published on 30.4.2026

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GB/T 12164.1-2008

Reference beta radiations - Part 1: Methods of production

Standard published on 2.7.2008

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GB/T 12164.3-2013

Reference beta radiations - Part 3: Calibration of area and personal dosemeters and the determination of their response as a function of beta radiation energy and angle of incidence

Standard published on 10.10.2013

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GB/T 12166-1990

Electrical characteristics of unbalanced voltage digital interface circuits

Standard published on 12.1.1990

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