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VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED

Standard No. Title Price(USD) Delivery Status Add To Cart GB/T 24578-2015 Test method for measuring surface metal contamination on silicon wafers by total reflection X-Ray fluorescence spectroscopy (USD) via email in 1-3 business day VALID Add To Cart GB/T 37049-2018 Test method for the content of metal impurity in electronic grade polysilicon—Inductively coupled-plasma mass spectrometry method (USD) via email in 1-3 business day VALID Add To Cart YS/T 519.2-2006 Methods for chemical analysis of arsenic The malachite green photometric method for the determination of antimony content (USD) via email in 1-3 business day ABOLISHED Add To Cart YS/T 227.8-1994 Determination of magnesium and sodium contents in tellurium--Atomic absorption spectrophotometric method (USD) via email in 1-3 business day ABOLISHED Add To Cart

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