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National Sharing Platform for Reference Materials
Sponsor：National Institute of Metrology, China

Bush branches and leaves

Code Ag   Mass fraction (10 -6 ) Al<SUP>*</SUP>   Mass fraction (10 -2 ) As   Mass fraction (10 -6 )
Value Standard Diviation(S) Value Standard Diviation(S) Value Standard Diviation(S)
GBW07602 0.027 0.006 0.214 0.022 0.95 0.12
GBW07603 0.049 0.007 0.2 0.03 1.25 0.15
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