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YS/T 581.10-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 10: Determination of sulphur content by X-ray fluorescence spectrometric method via email in VALID please email coc@codeofchina.com for quotation
GB/T 30654-2014 Test method for lattice constant of Ⅲ-nitride epitaxial layers 180 (USD) via email in 1-3 business day VALID
GB/T 1550-2018 Test methods for conductivity type of extrinsic semiconducting materials 240 (USD) via email in 1-3 business day VALID
GB/T 34210-2017 Test method for determining the orientation of sapphire single crystal 120 (USD) via email in 1-3 business day VALID
GB 8763-1988 Test methods of gas absorption characteristic for non-evaporation gettering materials and products 60 (USD) via email in 1-3 business day VALID
GB/T 16596-1996 Specification for establishing a wafer coordinate system via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 24271-2009 Specification for strip component of thermostat metals 120 (USD) via email in 1-3 business day VALID
GB/T 38804-2020 Test method for oxidation of metallic materials exposed in high-temperature steam 180 (USD) via email in 1-3 business day TO BE VALID
GB/T 5225-1985 Metal materials-Quantitative phase analysis-Value Kmethod of X-ray diffraction via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3651-2008 Measuring method for thermal conductivity of metal at high temperature via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 3170.1-1982 Determination of particle size of aluminum powder; Mechanical vibration sieve method 60 (USD) via email in 1-3 business day ABOLISHED
GB 1555-1979 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 30537-2014 Superconductivity—Measurements for bulk high temperature superconductors—Trapped flux density of large grain oxide superconductors 300 (USD) via email in 1-3 business day VALID
YS/T 581.15-2007 Determination of chemial contents and physical properties of aluminium fluoride Part 15:free alumina content via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 6620-1995 Test method for measuring warp on silicon slices by noncontact scanning via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 3493-1983 Standard method for measuring diameter of fine wire of the precious metals and their alloys(weighing method) 45 (USD) via email in 1-3 business day ABOLISHED
YS/T 629.5-2007 Chemical analysis methods of high purity alumina Determination of calcium oxide and magnesium oxide Inductively coupled plasma atomic emission spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 6146-1985 Test method for resistivity of precision resistance alloys 60 (USD) via email in 1-3 business day ABOLISHED
GB/T 13388-1992 Method for measuring crystallographic orientation of flats on single crystal silicon slices and wafers by X-ray techniques via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 455.7-2006 Measuring thickness of the aluminium foil -- Weighing method 105 (USD) via email in 1-3 business day
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