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Sponsor：National Institute of Metrology, China

Iron Brass Manganese Brass

Code Al   Mass fraction (10 -2 ) Bi   Mass fraction (10 -2 ) Cu   Mass fraction (10 -2 )
Value Certified Uncertainty Value Certified Uncertainty Value Certified Uncertainty
GBW02101 0.26 0.01 0.0024 0.0001 58.00 0.04
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