Table 4.

IPRT calibration drift in mK. Underlined numbers in sets IX and X are the numbers for the IPRTs which had been previously measured in sets III and VI

Company	Set I	Set II	Set III	Set IV	Set V	Set VI	Set VII	Set VIII	Set IX	Set X
A	0	5	5	225	27	23		0	28	2
	7	2	8	25	18	17		0	20	0
	6				0	100		10	0	7
	0				20	8		8	35	7
	0				25	13			100	0
	8					0			0	26
	5					15			20	4
	5								4
									11
Mean for Sets I–X = 18 (for 46 entries); 19 (for 43 entries, ignoring the 3 outliers).
Mean for Sets III–X = 22 (for 36 entries); 24 (for 33 entries, ignoring the 3 outliers).
Mean for Sets III–X = 12 (for 33 entries, ignoring 3 repeats); 12 (for 30 entries, ignoring 3 repeats and 3 outliers).
A			55	20			58	33
				25			16	38
				10			35
				2			0
				8			10
				40			120
				25			28
							15
							117
Mean for Sets III —X = 34; 25 (ignoring 2 outliers).
C			20		10		15	0	8
			12					14
			900
Mean for Sets III–X = 122 (for 8 entries); 11 (for 7 entries, not counting outlier).
Mean for Sets III–X = 12 (for 6 entries, ignoring repeat and outlier).
D		0	250		Open	30		Bad		18
		3	45		250	65		15		10
		0			8	15
		5
Mean for Sets I–X = 51 (for 14 entries); 57 (for 12 entries, ignoring open circuit, bad IPRT, and 2 repeats).
Mean for Sets III–X = 71 (for 10 entries); 85 (for 8 entries, ignoring open circuit, bad IPRT, and 2 repeats).
Mean for Sets III–X = 26 (for 8 entries, ignoring open circuit, bad IPRT, and 2 outliers); 30 (for 6 entries, ignoring open circuit, bad IPRT, 2 outliers, and 2 repeats).
E	0	1	0	20	8				26
	0	5	0
		7
		0
Mean for Sets I–X = 6.
Mean for Sets III–X = 11.