Loading…
Investigation of ITS-90 Inconsistencies in Overlap Region of the Water-indium, Water-tin, and Water-zinc Sub-ranges
One of the significant uncertainties in Standard Platinum Resistance Thermometer (SPRT) calibration by fixed-points method is Type I non-uniqueness (sub-range inconsistencies). Sub-ranges water-tin ( W 9 ) and water-indium ( W 10 ) lies in the water-zinc ( W 8 ) sub-range of the International Temper...
Saved in:
Published in: | MĀPAN : journal of Metrology Society of India 2017-12, Vol.32 (4), p.297-303 |
---|---|
Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | One of the significant uncertainties in Standard Platinum Resistance Thermometer (SPRT) calibration by fixed-points method is Type I non-uniqueness (sub-range inconsistencies). Sub-ranges water-tin (
W
9
) and water-indium (
W
10
) lies in the water-zinc (
W
8
) sub-range of the International Temperature Scale of 1990. Therefore, three sub-range inconsistencies [
W
8
and
W
9
(
SRI
8
–
9
),
W
8
and
W
10
(
SRI
8
–
10
), and
W
9
and
W
10
(
SRI
9
–
10
)] occur. This paper investigated these inconsistencies using the calibration data of 12 SPRTs from six manufacturers. The result shows that the magnitude of the inconsistency for
SRI
8
–
9
,
SRI
8
–
10
, and
SRI
9
–
10
are about 2.5, 2.2 and 1.8 mK, respectively. |
---|---|
ISSN: | 0970-3950 0974-9853 |
DOI: | 10.1007/s12647-017-0218-4 |