. 1974 Jul-Aug;78A(4):477–495. doi: 10.6028/jres.078A.031

Table 3.

Observed thermometer resistance at the triple point of water and at the freezing points of the aluminum samples and the values of the ratios of the resistances

Cell A-6 (Series 1)
Date	R(AI)or R (TP)	R (TP), mean	R (AI)/R (TP)
	Ohms	Ohms
9–25-73	^a,b0.269832809
	^b0.269832825
9–26-73	0.269832718
	0.910413896	0.269832708	3.37399385
	0.269832699
	0.910414003	0.269832725	3.37399403
	0.269832751
	0.910413852	0.269832780	3.37399278
	0.269832810
9–27-73	0.269832621
	0.910413816	0.269832508	3.37399605
	0.269832394
	0.910413882	0.269832630	3.37399477
9–28-73	0.269832867
	0.910414020	0.269832852	3.37399250
	0.269832836
	0.9104.13930	0.269832896	3.37399162
10–2-73	0.269832955
Mean R(TP)	0.269832739	Mean 3.37399366
Std. Dev.^C	±163×10-⁹	Std. Dev. . ±149×10-⁸
	±0.15 mK	:±:0.46 mK
Mean R (AI)	0.910413914
Std. Dev.	±:76×10-⁹	Spread 443 × 10⁻⁸
	±:0.09 mK	1.38 mK
Mean R (AI)	3.37399352	Deviation −24 × 10⁻⁸
Mean R (TP)		from the mean of five cells^d −0.07 mK

Cell A-5 (Series 2)
Date	R (AI)or R (TP)	R (TP), mean	R(AI)/R(TP)
	Ohms	Ohms
10–2-73	0.269832955
	0.910413819	0.269832995	3.37398997
	0.269833035
	0.910414069	0.269833021	3.37399057
10–3-73	0.269833007
	0.910413922	0.269832878	3.37399182
	0.269832749
	0.910413979	0.269832758	3.37399353
	0.269832768
	0.910413887	0.269832749	3.37399330
10–4-73	0.269832730
	0.910413864	0.269832674	3.37399415
	0.269832618
	0.910414088	0.269832497	3.37399720
10–5-73	0.269832376
	0.910414091	0.269832624	3.37399562
	0.269832871
Mean R (TP)	0.269832790	Mean 3.37399327
Std. Dev.	±208×10-⁹	Std. Dev. :±:245×10-⁸
	±0.19mK	±0.76 mK
Mean R(AI)	0.910413965
Std. Dev.	±109×10-⁹	Spread 723 × 10-⁸
	±0.12mK	2.25 mK
Mean R (AI)	3.37399308	Deviation from	-63×10-⁸
Mean R (TP)		the mean of five cells^d	−0.20 mK
Cell A-3 (Series 3)
Date	R(Al)or R (TP) Ohms	R (TP), mean Ohms	R(AI)/R(TP)
10–10-73	0.269832746
	0.910413453	0.269832848	3.37399045
	0.269832951
	0.910413741	0.269832924	3.37399057
	0.269832897
	0.910413590	0.269833058	3.37398833
	0.269833218
	0.910413735	0.269832991	3.37398971
10–11-73	0.269832764
	0.910413534	0.269832912	3.37398995
	0.269833060
	0.910413475	0.269832954	3.37398921
	0.269832848
Mean R(TP)	0.269832926	Mean 3.37398970
Std. Dev.	±168×l0-⁹	Std. Dev. ±81 × 10⁻
	±0.16 mK	±0.25 mK
Mean R(AI)	0.910413588
Std. Dev.	±126×10-⁹	Spread 224 × 10-⁸
	:±:0.15 mK	0.70 mK
Mean R(AI)	3.37398998	Deviation from	−420 × 10⁻⁸
Mean R(TP)		the mean of five cells^d	−1.31 mk
Cell A-4 (Series 4)
Date	R (AI)or R (TP)	R (TP), mean	R(AI)/R(TP)
	Ohms	Ohms
10–15-73	^b0.269832848
10–16-73	0.269832782
	0.910413955	0.269832820	3.37399266
	0.269832859
	0.9]0413957	0.269832856	3.37399222
	0.269832854
10–17-73	0.269832767
	0.9104]3715	0.269832756	3.37399257
	0.269832746
	0.910414340	0.269832782	3.37399457
	0.269832819
	0.910414699	0.269832858	3.37399495
	0.269832898
	0.910414060	0.269832829	3.37399294
10–18-73	0.269832760
	0.910413952	0.269832676	3.37399445
	0.269832592
	0.910414115	0.269832684	3.37399496
10–19-73	0.269832775
	0.910414074	0.269832662	3.37399508
	0.269832548
	0.910414112	0.269832776	3.37399380
10–23-73	0.269833004
MeanR(TP)	0.269832784	Mean 3.37399382
Std. Dev.	±124X10-⁹	Std. Dev. ±112×10-⁸
	±0.12 mK	±0.35 Mk
MeanR(AI)	0.910414098
Std. Dev.	±265X10-⁹	Spread 286 × 10⁻⁸
	±0.31 mK	0.89 mK
Mean R (AI)	3.37399364	Deviation from	−8×10⁻⁸
Mean R(TP)		the mean of five cells^d	− 0.02 mK
Cell A-2 (Series 5)
Date	R (AI) or R (TP) Ohms	R (TP), mean Ohms	R (AI)/ R (TP)
10–24-73	0.269832938
	0.910414732	0.269832953	3.37399388
	0.269832968
	0.910414712	0.269833026	3.37399289
	0.269833085
	0.910414876	0.269832969	3.37399421
	0.269832853
10–25-73	0.269832758
	0.910414659	0.269832791	3.37399563
10–26-73	0.269832824
	0.910414540	0.269833010	3.37399246
	0.269833196
	0.910414860	0.269833048	3.37399317
	0.269832900
10–27-73	0.269832854
	0.910414727	0.269832955	3.37399384
	0.269833056
	0.910414960	0.269832953	3.37399472
	0.269832850
Mean R (TP)	0.269832935	Mean 3.37399385
Std. Dev.	±131×10-⁹	±103X 10-⁸
	±0.12 mK	±0.32 mK
Mean R (AI)	0.910414758
Std. Dev.	±134× 10-⁹	Spread 317×10-⁸
	±0.16 mK	0.99 mK
Mean R (Al)	3.37399420	Deviation from	−5×10⁻⁸
Mean R (TP)		the mean of five cells^d	− 0.02.mK.
Cell A-I (Series 6)
Date	R(AI)or R (TP)	R (TP), mean	R (AI)/ R (TP)
	Ohms	Ohms
10–30-73	0.269832882
	0.910415384	0.269833042	3.37399518
	0.269833203
	0.910415347	0.269833124	3.37399402
10–31-73	0.269833044
	0.910415434	0.269833064	3.37399509
	0.269833085
	0.910415206	0.269833022	3.37399477
	0.269832958
	0.910415621	0.269833081	3.37399557
	0.269833204
	^e 0.910417677	^f0.269833722	3.37399518
11–1-73	^b,f0.269833722
	^e 0.910417552	^f0.269833722	3.37399472
	0.269833132
	0.910415657	0.269833188	3.37399437
11–2-73	0.269833245
	0.910415425	0.269833161	3.37399385
	0.269833077
	0.910415514	0.269832988	3.37399634
	0.269832898
Mean R (TP)	0.269833073	Mean 3.37399491
Std. Dev.	±128×10-⁹	Std. Dev. ±74× 10-⁸
	±0.12 mK	±0.23 mK
Mean R (AI)	0.910415448
Std. Dev.	± 147×10-⁹	Spread 249×10-⁸
	±0.17 mK	0.78 mK
Cell A-I (Series 6)
Date	R (AI) or R (TP) Ohms	R (TP), mean Ohms
Mean R (AI)	3.37399503	Deviation from	+ 101X10-⁸
Mean R (TP)		the mean of five cells^d	+ 0.31 mK
Average Std. Dev. Of R (TP)	±154×10-⁹Ω ~±0.14 mK
Spread of the mean R(TP) among the six series of observations	334×10–9Ω ~0.31 mK
Average Std. Dev. of R (AI)	± 143 ×10-⁹Ω ~±0.17 mK
Spread of the mean R(AI) of the six cells	1860×10-⁹Ω ~2.15 mK
Average Std. Dev. of R(AI)/R(TP)	±127×10-⁸ ~±0.40 mK
Spread of the mean R(Al)/R(TP) of the six cells	521× 10-⁸ ~1.62 mK
Mean of the mean R(AI)/R(TP) of the six cells	3.37399320
Spread of the mean R(AI)/R(TP) of five cells (excluding cell A-3)	164×10-⁸ ~0.51 mK
Mean of the mean R(AI)/R(TP) of five cells (excluding cell A-3)	3.37399390

The last two figures were obtained by interpolation in the strip-chart record. On the bases of the sensitivity of the measurement system and the “noise” in the strip-chart record, the accuracy of the interpolation is estimated to be about ±3 (approximately ±0.3 mm on the chart) in the next to the last figure given. The extra figure was carried to retain an over-all consistency in the calculations.

This observation was not included in computing the mean R(TP) of this series of measurements.

Standard deviation is defined here as [Σd²/n − 1)]^½, where d is the deviation of the individual values from the mean and n is the number of observations.

Cell A–3 was excluded from the mean.

This observation was not included in computing the mean R(Al) for this cell, but was included in computing R(Al)/R(TP).

This rather high value of R(TP) was considered to be more consistent with the two adjacent exceptionally high values of R(Al) and, therefore, was employed in computing the R(Al)/R(TP) for these two values of R(Al).