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Table T7. Continuous measurement results for check samples (30 repetitions). (See table note.)

Reference
material 		Na2O MgO Al2O3 SiO2 P2O5 K2O CaO TiO2 MnO Fe2O3
JA-1:
Average (wt%) 3.86 1.52 15.15 64.27 0.16 0.78 5.66 0.85 0.16 7.08
SD (wt%) 0.04 0.02 0.03 0.06 0.004 0.009 0.008 0.008 0.002 0.01
RSD (%) 1.1 1.5 0.2 0.1 2.3 1.1 0.1 0.9 1.3 0.2
3σ (wt%) 0.13 0.07 0.08 0.17 0.01 0.03 0.02 0.02 0.006 0.04
JB-3:
Average (wt%) 2.83 5.19 17.23 50.83 0.29 0.78 9.67 1.43 0.18 11.86
SD (wt%) 0.06 0.03 0.03 0.07 0.004 0.01 0.01 0.01 0.002 0.02
RSD (%) 2.0 0.6 0.2 0.1 1.4 1.3 0.1 0.9 1.3 0.2
3σ (wt%) 0.17 0.09 0.08 0.21 0.01 0.03 0.03 0.04 0.007 0.05

Note: SD = standard deviation, RSD = relative standard deviation, 3σ = control limit.

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