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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
Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 6: Determination of magnesium content - Flame atomic absorption spectrometric method
Standard published on 27.11.2013
Selected format:Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 7: Determination of iron content-1,10-phenanthroline spectrophotometric method
Standard published on 27.11.2013
Selected format:Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 8: Determination of silicon content - Molybdenum blue spectrophotometric method
Standard published on 27.11.2013
Selected format:Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Part 9: Determination of sulfate content—Barium sulfate turbidity method
Standard published on 6.8.2023
Selected format:Methods for chemical analysis of gold - Determination of gold content - Fire assaying method
Standard published on 9.6.2008
Selected format:Methods for chemical analysis of gold - Determination of silicon content - Molybdenum blue spectrophotometry
Standard published on 15.4.2009
Selected format:Methods for chemical analysis of gold—Part 11Determination of magnesium, chromium,manganese,iron,nickel,copper,palladium,silver,tin,antimony,lead and bismuth contents—Inductively coupled plasma mass spectrometry
Standard published on 30.4.2021
Selected format:Methods for chemical analysis of gold—Part 12Determination of silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithium, sodium, tellurium, vanadium, zirconium, cadmium, molybdenum, rhenium, aluminum contents—Inductively coupled plasma atomic emission spectrometry
Standard published on 25.4.2024
Selected format:Methods for chemical analysis of gold - Determination of silver content - Flame atomic absorption spectrometry
Standard published on 9.6.2008
Selected format:Methods for chemical analysis of gold - Determination of iron content - Flame atomic absorption spectrometry
Standard published on 9.6.2008
Selected format:Latest update: 2025-08-26 (Number of items: 2 213 294)
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