Table 4.

Historical Negative and Positive Control Values for Non-S9 Activated Micronucleus Assay, 2013–2015.

Micronucleated Binucleated Cells (%)
	Negative Controt		Positive Controla
	4 h	24 h	4 h	24 h
Mean	0.36	0.39	3.77	1.76
Standard Deviation	0.23	0.31	1.66	0.86
95% Control Limits	0.00–0.82	0.00–1.01	0.46–7.08	0.04–3.48
Rangeb	0.05–1.43	0.10–2.00	1.00–10.10	0.50–5.70

^aPositive control for non-activated 4 h studies is Mitomycin C, Positive control for activated 24 hour study is Vinblastine.

^bRange is from minimum to maximum.