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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
Test methods for quality of coal water mixture—Part 1—Sampling for coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 10—Determination for fusibility of ash of coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 11:Determination of carbon and hydrogen in coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 12—Determination of nitrogen of coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 13:Determination for the ash of coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 14:Determination for pH value of coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 2—Determination of the solid load of coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 3—Sieving method for coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 4—Determination of apparent viscosity of coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Test methods for quality of coal water mixture—Part 5—Determination of the stability of coal water mixture
WITHDRAWN published on 18.10.2002
Selected format:Latest update: 2025-07-07 (Number of items: 2 207 474)
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