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Standard No. Title Price(USD) Delivery Status Add To Cart
GB/T 16553-2010 Gems—Testing 1440 (USD) via email in 1-10 business day ABOLISHED
QB/T 4723-2014 60 (USD) via email in 1-3 business day VALID
GB/T 38162-2019 High content silver jewellery alloys—Determination of silver—Difference method using inductively coupled plasma optical emission spectroscopy 180 (USD) via email in 1-3 business day VALID
QB/T 4182-2011 Ornament--Marking via email in please email coc@codeofchina.com for quotation
QB/T 4189-2011 Evaluation Specifications of Precious Metal Jewelry Technological via email in VALID please email coc@codeofchina.com for quotation
GB/T 28019-2011 Adornment—Determination of Chromium(Ⅵ)—1,5-Diphenylcarbohydrazide spectrophotometric method 120 (USD) via email in 1-3 business day VALID
GB/T 36927-2018 Judgment guideline of childrens jewellery 420 (USD) via email in 1-3 business day VALID
DB23/T 1643-2015 via email in VALID please email coc@codeofchina.com for quotation
QB/T 1734-2008 via email in VALID please email coc@codeofchina.com for quotation
GB/T 38816-2020 Agate—Beihong agate—Testing 180 (USD) via email in 1-3 business day TO BE VALID
DB37/T 2952-2017 Diamond Color Grading via email in VALID please email coc@codeofchina.com for quotation
GB/T 9288-2019 Gold jewellery alloys—Determination of gold—Cupellation method(fire assay) 240 (USD) via email in 1-3 business day VALID
GB/T 18043-2008 Jewellery - Determination of precious metal content - Method using X-Ray flurescence spetrometry 75 (USD) via email in 1-3 business day ABOLISHED
GB/T 35777-2017 Mechanical tests for metal alloys adornment chains—Tensile testing 180 (USD) via email in 1-3 business day VALID
T/GYSP 4-2018 Rules for sample nomenclature— Jadeite via email in VALID please email coc@codeofchina.com for quotation
GB 11887-2012/XG1-2015 Jewellery - Fineness of precious metal alloys and designation via email in VALID please email coc@codeofchina.com for quotation
DB37/T 2948-2017 Testing and Grading of Synthetic Diamond via email in VALID please email coc@codeofchina.com for quotation
GB/T 38145-2019 High content precious metals jewellery alloys—Determination of gold,platinum and palladium—Difference method using inductively coupled plasma optical emission spectroscopy 180 (USD) via email in 1-3 business day VALID
DB37/T 2951-2017 Diamond Cut Grading via email in VALID please email coc@codeofchina.com for quotation
GB/T 16554-2003 Diamond grading via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
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