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YS/T 617.2-2007 Determination of chemical compositions and physical properties of aluminum powder magnesium powder and Al-Mg alloy powder Part 2 Determination of aluminum content of Al-Mg alloy powders Fluoride replacement-complexometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 17473.3-1998 Test methods of precious metal pastes used for thick film microelectronics--Determination of sheet resistance via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 32282-2015 Test method for dislocation density of GaN single crystal—Cathodoluminescence spectroscopy 180 (USD) via email in 1-3 business day VALID
GB/T 11107-2018 Metallic and its compound powder—Determination of specific surface and particle size—Air permeating method 180 (USD) via email in 1-3 business day VALID
YS/T 535.8-2009 Chemical analysis methods of sodium fluoride—Part 8:Determination of water insoluble matter content—Gravimetric method 120 (USD) via email in 1-3 business day VALID
YB 799-1971 via email in please email coc@codeofchina.com for quotation
YS/T 581.12-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 12: Determination of size distribution -- Sieving method 60 (USD) via email in 1-3 business day VALID
GB/T 32188-2015 Test method for full width at half maximum of double crystal X-ray rocking curve of GaN single crystal substrate 180 (USD) via email in 1-3 business day VALID
GB/T 26068-2018 Test method for carrier recombination lifetime in silicon wafers and silicon ingots—Non-contact measurement of photoconductivity decay by microwave reflectance method 480 (USD) via email in 1-5 business day VALID
JB/T 7131-2002 Standard test method for cross curvature of thermostat metals via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 1161.1-2016 Chemical analysis methods of pseudoboehmite—Part 1:Determination of gelation index—EDTA titrimetric method 120 (USD) via email in 1-3 business day VALID
GB/T 4104-1983 Leucoscopic method for testing whiteness of zinc oxide made by direct process 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 351-1995 Metallic materials—Resistivity measurement method 90 (USD) via email in 1-3 business day ABOLISHED
YS/T 581.4-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 4:Determination of aluminium by the EDTA volumetric method 75 (USD) via email in 1-3 business day VALID
GB 11107-1989 Metallic and its compound powder-Determination of specific surface and particle size by air permeating method 90 (USD) via email in 1-3 business day ABOLISHED
YS/T 23-2016 Test method for thickness of epitaxial layers—Stacking fault size 180 (USD) via email in 1-3 business day VALID
GB/T 11110-1989 Anodizing of aluminium and its alloys-Determination of quality of sealed anodic oxide coating-Admittance test via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 30860-2014 Test methods for surface roughness and saw mark of silicon wafers for solar cells 240 (USD) via email in 1-3 business day VALID
GB/T 6618-1995 Test method for thickness and total thickness variation of silicon slices via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YB/T 5338-2006 Retained austenite in steel -- Quantitative deternination -- Method of X-ray diffractometer 60 (USD) via email in 1-3 business day ABOLISHED
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