Table 6.

Statistics of t′.¹

RT set		Run 1	Run 2	Combined runs
at gold point (Au)
NIM	Mean	1062.5062	1062.5003	1062.5032
	SD2	0.0212	0.0098	0.0156
	Range	0.0454	0.0213	0.0454
NBS	Mean	1062.5034	1062.5018	1062.5026
	SD	0.0211	0.0110	0.0151
	Range	0.0420	0.0206	0.0420
Combined Set	Mean	1062.5050	1062.5009	1062.5030
	SD	0.0194	0.0094	0.0148
	Range	0.0485	0.0249	0.0485
at silver point (AG)
NIM	Mean	960.5288	960.5208	960.5248
	SD	0.0119	0.0089	0.0106
	Range	0.0264	0.0217	0.0296
NBS	Mean	960.5226	960.5200	960.5213
	SD	0.0118	0.0071	0.0088
	Range	0.0219	0.0136	0.0241
Combined set	Mean	960.5262	960.5205	960.5233
	SD	0.0113	0.0075	0.0097
	Range	0.0264	0.0217	0.0296
at aluminum point (AL)
NIM	Mean	660.4079	660.4046	660.4062
	SD	0.0027	0.0029	0.0031
	Range	0.0067	0.0069	0.0108
NBS	Mean	660.4108	660.4101	660.4104
	SD	0.0041	0.0028	0.0031
	Range	0.0073	0.0050	0.0073
Combined set	Mean	660.4091	660.4069	660.4080
	SD	0.0034	0.0039	0.0037
	Range	0.0108	0.0127	0.0149

¹Statistics derived from values of t′ in table 5.

²SD: estimate of standard deviation of one value in indicated set.