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GB - Chinese national standards - Page 143

Standards GB - Chinese national standards - Page 143

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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Publication year
Preview GB/T 11848.16-1991 26.4.1991
GB/T 11848.16-1991

Determination of phosphorus in uranium ore concentrate by spectrophotometry

Standard published on 26.4.1991

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Preview GB/T 11848.16-2025 5.10.2025
GB/T 11848.16-2025

Methods for analysis of uranium ore concentrate—Part 16Determination of phosphorus—Spectrophotometric method
Execute Date: may 2026

Standard published on 5.10.2025

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Preview GB/T 11848.2-1989 21.10.1989
GB/T 11848.2-1989

Determination of nitric acid-insolubleuranium in uranium ore concentrate

Standard published on 21.10.1989

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173.80 USD


in 2 working days
Preview GB/T 11848.2-2025 5.10.2025
GB/T 11848.2-2025

Methods for analysis of uranium ore concentrate—Part 2Determination of nitric acid-insoluble uranium—Spectrophotometric method
Execute Date: may 2026

Standard published on 5.10.2025

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Preview GB/T 11848.3-1999 19.5.1999
GB/T 11848.3-1999

Determination of extractable organic material in uranium ore concentrate

Standard published on 19.5.1999

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Preview GB/T 11848.3-2025 5.10.2025
GB/T 11848.3-2025

Methods for analysis of uranium ore concentrate—Part 3Determination of extractable organic material—Gravimetric method
Execute Date: may 2026

Standard published on 5.10.2025

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Preview GB/T 11848.4-1989 24.10.1989
GB/T 11848.4-1989

Determination of arsenic in uranium ore concentrate by diethyldithiocarbamate photometric method

Standard published on 24.10.1989

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Preview GB/T 11848.4-2025 5.10.2025
GB/T 11848.4-2025

Methods for analysis of uranium ore concentrate—Part 4Determination of arsenic and mercury—Hydride generation-atomic fluorescence spectrometry
Execute Date: may 2026

Standard published on 5.10.2025

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Preview GB/T 11848.5-1999 19.5.1999
GB/T 11848.5-1999

Determination of carbonate in uranium ore concentrate by titration in non-aqueous solvent

Standard published on 19.5.1999

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Preview GB/T 11848.5-2025 5.10.2025
GB/T 11848.5-2025

Methods for analysis of uranium ore concentrate—Part 5Determination of carbonate—Infrared absorption method
Execute Date: may 2026

Standard published on 5.10.2025

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