Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 16554-2017 Diamond grading 600.0 via email in 1~5 business day valid
T/GYSP 5-2018 Samples testing―Jadeite via email in business day valid
T/GYSP 4-2018 Rules for sample nomenclature― Jadeite via email in business day valid
GB/T 30714-2014 Determination of rare earth in ink-stone by inductively coupled plasma mass spectrometry 110.0 via email in 1~3 business day valid
DZ/T 0294-2016 Colorless synthetic single crystal diamond grown by chemical vapor deposition method. Screening and identifying 204.0 via email in business day valid
GB/T 16553-2017 Gems―Testing 1395.0 via email in 1~10 business day valid
GB/T 36169-2018 Turquoise—Grading via email in business day valid
GB/T 16552-2017 Gems - Nomenclature 180.0 via email in 1~2 business day valid
GB/T 16553-1996 Gems--Testing 1020.0 via email in 1~10 business day superseded
GB/T 30713-2014 Microscopic method of inkstone identification 150.0 via email in 1~3 business day valid
GB/T 4291-2007 Synthetic cryolite 110.0 via email in 1~3 business day superseded
JC/T 574-2006 Meerschaum 135.0 via email in 1~3 business day valid
GB/T 4291-2017 Synthetic cryolite 100.0 via email in 1~3 business day valid
GB/T 34098-2017 Quartzose jade--Classification and nomenclature 105.0 via email in 1~3 business day valid
GB/T 31432-2015 Dushan Yu―Denomination and lassification 240.0 via email in 1~3 business day valid
GB/T 31390-2015 Appraisal for view stone 210.0 via email in 1~3 business day valid
GB/T 16553-2010 Gems—Testing 1380.0 via email in 1~3 business day abolished
GB/T 33541-2017 Qualified judgement criteria of sampling inspectionfor gems and precious metal products 160.0 via email in 1~3 business day valid
GB/T 16552-2003 Gems―Nomenclature 180.0 via email in 1~3 business day abolished
GB/T 16552-2010 Gems - Nomenclature 360.0 via email in 1~3 business day abolished
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