| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| DB37/T 2950-2017 |
Jewellery-Bracelet-size-Definition,measurementand designation |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| QB/T 2855-2007 |
Jewellery-Nondestructive quantitative determination of precious metal-Consistency syntheses method |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 28016-2011 |
Gold alloy jewellery—Determination of gold—Gravimetric method |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 9288-2006 |
Gold jewellery alloys—Determiantion of gold—Cupellation method(fire assay) |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 21198.6-2007 |
Determination of precious metals in precious metals jewellery alloys—Method using ICP spectrometry—Part 6:Difference method |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| QB/T 1131-2005 |
Jewellery-the provision of gold coatings tickness |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 19719-2005 |
Jewellery--Determination of the release of nickel--Method of spectrometry |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| QB/T 1690-2004 |
Provision of permissible errors for measurement of precious metals adornment mass |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 11886-2015 |
Silver jewellery alloys—Determination of sliver—Volhard method |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 23886-2009 |
Determination of nacre thickness—Optical coherence tomography |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| QB/T 1132-2005 |
Jewellery-the provision of silver coatings tickness |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 9288-1998 |
Analyse method of gold content in jewellery |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 28020-2011 |
Adornment—Determination of baneful elements—X-ray fluorescence spectrometric method |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 16554-2010 |
Diamond grading |
 (USD) |
via email in
1-5 business day
|
ABOLISHED
|
|
| GB 11887-2008 |
Jewellery - Fineness of precious metal alloys and designation |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 19720-2005 |
Platinum jewellery alloys--Determination of platinum and palladium--Gravimetric method after precipitation of diammonium hexachloroplatinate and dimethylglyoxime |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 30712-2014 |
Provision of permissible errors for measurement of polished diamond mass |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 17832-1999 |
Determination of silver in silver jewellery alloys--Volumetric（potentiometric）method using potassium bromide |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 31912-2015 |
Adornment—Mark |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 19718-2005 |
Jewellery--Determiantion of nickel content--Method of flame atomic absorption spectrometry |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
|
|
