GBW07822 Certified Reference Materials for the Chemical Composition of Iron Ore

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50g

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GBW07822

Description

Certified Reference Materials for the Chemical Composition of Iron Ore

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NMI Service Identifier

Measurement Service Sub-Category

	Certified Value	Certified Uncertainty	Unit
TFe	20.17	0.08	Mass fraction (10 ^-2)
FeO	（7.5）		Mass fraction (10 ^-2)
SiO₂	60.86	0.20	Mass fraction (10 ^-2)
Al₂O₃	3.57	0.13	Mass fraction (10 ^-2)
CaO	2.84	0.08	Mass fraction (10 ^-2)
MgO	1.68	0.07	Mass fraction (10 ^-2)
P	0.045	0.003	Mass fraction (10 ^-2)
S	0.051	0.009	Mass fraction (10 ^-2)
H₂O⁺	（1.2）		Mass fraction (10 ^-2)
Na₂O	0.28	0.01	Mass fraction (10 ^-2)
K₂O	0.53	0.04	Mass fraction (10 ^-2)
Ti	0.085	0.006	Mass fraction (10 ^-2)
Mn	0.168	0.009	Mass fraction (10 ^-2)
Cu	0.0028	0.0005	Mass fraction (10 ^-2)