TABLE 1.

Logarithmic reduction factors of carrier tests at different contact times with freshly homogenized cells of M. terrae and cells that had been stored at 4°C

Carrier test	Duration of storage (h)	RF at indicated contact time (min) witha:
		OPA			Coco fatty aminoxethylate
		15	30	60	15	30	60
1	0	3.0	4.2	4.8	0.9	1.4	3.8
	48	2.6	4.0	4.8	0.7	1.6	2.7
	96	2.6	4.6	4.8	0.8	1.6	1.9
2	0	3.6	4.6	4.8	0.7	1.8	3.4
	48	3.3	4.4	4.8	0.7	1.8	2.9
	96	2.8	4.8	4.8	0.8	1.6	2.3
Mean	0	3.3	4.4	4.8	0.8	1.6	3.6*
	48	2.9	4.2	4.8	0.7	1.7	2.8
	96	2.8	4.7	4.8	0.8	1.6	2.1*

^a*, P = 0.02 (Tukey's test).