Supplemental Data Table S5.

Commutability for AST activity measurements in candidate EQA materials according to the IFCC approach

Assay pairs (X–Y)	A01	A02	A03	A04	A05	A06	B01	B02	B03	C01	C02	C03	D01	D02	D03
Biosino-BSBE	C	I	C	C	NC	C	I	C	C	C	C	I	C	I	I
Biosino-DiaSys	C	C	I	I	NC	C	C	C	C	C	C	C	I	C	C
Biosino-KHB	I	I	I	I	I	I	C	C	C	C	C	C	C	C	C
Biosino-LEADMAN*	NC	NC	NC	I	C	I	C	I	C	I	NC	NC	NC	I	NC
Biosino-Maccura	C	C	C	I	C	C	C	C	C	C	C	C	C	C	C
Biosino-Wako	I	I	I	I	NC	I	C	I	C	I	C	C	C	C	C
BSBE-DiaSys	I	I	I	I	C	C	I	C	C	C	C	C	I	C	C
BSBE-KHB	C	C	C	I	I	I	I	C	C	C	C	I	C	C	I
BSBE-LEADMAN*	NC	NC	NC	I	NC	I	I	I	C	I	NC	NC	NC	NC	NC
BSBE-Maccura	C	C	C	I	NC	C	I	C	C	C	C	C	I	C	C
BSBE-Wako	C	C	C	I	C	I	I	C	I	I	C	I	C	I	I
DiaSys-KHB	I	NC	NC	C	C	C	C	C	C	C	C	C	C	C	C
DiaSys-LEADMAN*	I	I	NC	C	I	NC	C	C	C	I	I	NC	I	NC	NC
DiaSys-Maccura	C	I	I	NC	NC	C	C	C	C	C	C	C	C	C	C
DiaSys-Wako	I	I	I	C	I	I	C	C	C	I	C	I	I	C	I
KHB-LEADMAN*	NC	NC	NC	C	I	NC	C	C	C	I	NC	NC	NC	NC	NC
KHB-Maccura	C	I	C	NC	NC	C	C	C	C	C	C	C	C	C	C
KHB-Wako	C	C	I	C	I	C	I	C	C	I	C	C	C	C	C
LEADMAN-Maccura*	NC	NC	NC	NC	C	NC	C	C	C	I	NC	NC	I	NC	NC
LEADMAN-Wako*	NC	NC	NC	C	NC	NC	C	C	C	NC	NC	I	NC	I	I
Maccura-Wako	I	I	C	NC	NC	I	C	C	I	I	C	I	I	C	I

^*Routine assay pairs, including LEADMAN.

Abbreviations: C, commutable; NC, noncommutable; I, inconclusive; EQA, external quality assessment.