VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED
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YS/T 806-2012 Chemical analysis method for rare earth in aluminium and aluminium alloys—Determination of La,Ce,Pr,Nd,Sm contents X-ray fluorescence spectrometric method 120 (USD) via email in 1-3 business day VALID
YS/T 273.7-1994 45 (USD) via email in 1-3 business day ABOLISHED
YS/T 534.2-2007 Chemical analysis methods of aluminium hydroxide Part 2:Determination of the loss of mass at 1100℃ Gravimetric method 120 (USD) via email in 1-3 business day VALID
YS/T 535.4-2008 via email in ABOLISHED please email coc@codeofchina.com for quotation