Initial Reports, Volume 209
Ms 209IR-107
Chapter 7, Table T7. Summary of caliper test data.

Standard	Standard dimension (in)	Standard dimension (mm)	Caliper 1 (mm)	Caliper 1 Error	Caliper 2 (mm)	Caliper 2 Error	Caliper 3 (mm)	Caliper 3 Error	Caliper 3 (in)	PWS3 (mm)	PWS3 Error

Machinist’s											
	0.500	12.70	12.75	0.050	12.7	0.000	12.7254	0.025	0.501	13.11	0.410
	0.400	10.16	10.15	-0.01	10.14	-0.02	10.1854	0.025	0.401	10.52	0.360
	0.300	7.62	7.59	-0.03	7.58	-0.04	7.6708	0.051	0.302	8.295	0.675
	0.200	5.08	5.1	0.02	5.03	-0.05	5.1054	0.025	0.201	5.74	0.660
	0.100	2.54	2.57	0.03	2.55	0.01	2.5654	0.025	0.101	3.19	0.650
Average error:				0.012		-0.02		0.030			0.551
Standard error:				0.014		0.011		0.005			0.068

Polycarbonate cylinders
		20	20.03	0.03	19.93	-0.07	19.97	-0.03	0.7862	20.05	0.02
		30	30.02	0.02	30.02	0.02	30.05	0.05	1.1832	30.02	0
		40	39.92	-0.08	39.95	-0.05	39.98	-0.02	1.574	40.02	0.1
		50	49.92	-0.08	49.93	-0.07	49.99	-0.01	1.968	49.93	0.01
Average error:				-0.027		-0.042		-0.003			0.032
Standard error:				0.011		0.009		0.009			0.023