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

Carbon Steels

Code B   Mass fraction (10 -2 ) Al   Mass fraction (10 -2 ) Cu   Mass fraction (10 -2 )
Value Certified Uncertainty Value Certified Uncertainty Value Standard Diviation(S)
GBW01217 (0.00042) 0.0089 0.0004 0.071 0.003
GBW01218 0.0031 0.0003 0.156 0.006 0.071 0.003
GBW01219 0.0018 0.0001 0.510 0.005 0.104 0.003
GBW01220 0.0031 0.0002 0.602 0.004 0.154 0.002
GBW01221 0.0014 0.0001 0.504 0.006 0.204 0.003
GBW01222 0.0069 0.0005 0.492 0.009 0.069 0.002
GBW(E)010009 0.138 0.002
GBW(E)010163 0.236 0.004
GBW(E)010166 0.312 0.006
GBW(E)010167 0.115 0.004
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