Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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QB/T 4442-2012 Ornaments Term 90.0 via email in 1~3 business day valid
GB/T 18043-2013 Jewellery - Determination of Precious Metal Content - Method Using X-ray Flurescence Spectrometry 150.0 via email in 1~3 business day valid
QB/T 2855-2007 Jewellery-Nondestructive quantitative determination of precious metal-Consistency syntheses method 135.0 via email in 1~3 business day valid
DB37/T 2950-2017 Jewellery-Bracelet-size-Definition,measurementand designation via email in business day valid
QB/T 4186-2011 Precious metal alloy coatings jewellery--General technical requirements of casting 60.0 via email in 1~3 business day valid
GB/T 18996-2003 Determination of silver in silver jewellery alloys--Volumertic (potentiometric) method using sodium chloride or potassium chloride 75.0 via email in 1~3 business day valid
GB/T 18303-2008 Color grading of polished diamond by visual matching 75.0 via email in 1~3 business day valid
QB/T 2996-2008 Brass foil 75.0 via email in 1~3 business day valid
GB/T 16552-2010 Gems - Nomenclature 360.0 via email in 1~3 business day abolished
GB/T 28487-2012 Precious metal alloys chains—Determination of tensile strength—Method of tensile testing 110.0 via email in 1~3 business day valid
QB/T 4113-2010 Color Grading of Fancy Colored Diamond 210.0 via email in business day valid
QB 1131-2005 Jewellery-the provision of gold coatings tickness 105.0 via email in 1~3 business day valid
GB/T 16553-1996 Gems--Testing 1020.0 via email in 1~10 business day superseded
GB/T 31108-2014 Classification and codes of jewelry inlay information 150.0 via email in 1~3 business day valid
GB/T 18303-2001 Colour grading of polished diamond by visual matching 45.0 via email in 1~3 business day abolished
QB/T 1131-2005 Jewellery-the provision of gold coatings tickness 90.0 via email in 1~3 business day valid
GB/T 16553-2010 Gems—Testing 1380.0 via email in 1~3 business day abolished
QB/T 2062-2006 Precious metal adornment 75.0 via email in 1~3 business day superseded
GB/T 32022-2015 Adornment with precious metal coating 90.0 via email in 1~3 business day valid
T/GYSP 5-2018 Samples testing―Jadeite via email in business day valid
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