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

Shale

Code SiO<SUB>2</SUB>   Mass fraction (10 -2 ) Al<SUB>2</SUB>O<SUB>3</SUB>   Mass fraction (10 -2 ) Fe<sub>2</sub>O<sub>3</sub>   Mass fraction (10 -2 )
Value Standard Diviation(S) Value Standard Diviation(S) Value Standard Diviation(S)
GBW03104 69.34 0.20 15.03 0.17 5.65 0.14
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