Table 3.

Reference values of the KRISS RM 111–10-507 batch 2

Target	Reference value (copies/mL)	Homogeneity (%)	Expanded uncertainty (copies/mL)	k (95% level of confidence)
RdRp	1.7 × 105	5.4	4.1 × 104	2.2
E	1.5 × 105	6.3	4.3 × 104	2.2
N	2.0 × 105	8.2	5.9 × 104	2.2
S	2.2 × 105	4.8	5.5 × 104	2.2