Report of the Italian inter-laboratories comparison of high dc resistance on the calibration of a 10 M Ω and a 1 G Ω resistors

• Published in: Measurement : journal of the International Measurement Confederation Vol. 42; no. 10; pp. 1532 - 1540
• Main Authors: Galliana, F., Capra, P.P., Gasparotto, E.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-12-2009
• Subjects: High dc resistance measurements; Interlaboratories comparison; Measurement compatibility; Measurement uncertainties; High dc resistance measurements; Measurement uncertainties; Measurement compatibility; Interlaboratories comparison
• ISSN: 0263-2241; 1873-412X
• DOI: 10.1016/j.measurement.2009.07.014

A national comparison of high dc resistance at
10
M
Ω
and
1
G
Ω
level was organized by the Electromagnetic Division of National Institute of Metrological Research (INRIM, Italy) and piloted by the high dc resistance Laboratory of the same Division. This comparison took place between January and April 2008 with the participation of 8 Secondary Laboratories accredited by the Italian Service of Accreditation of Calibration Laboratories (SIT). The travelling package included one wire-wound
10
M
Ω
standard and one thick film-type
1
G
Ω
standard in a wooden anti-shock container designed by INRIM. The obtained results indicate that the relative differences at
10
M
Ω
and
1
G
Ω
between each Laboratory’s value and the respective reference value are all within the expanded relative uncertainties of these differences at a
2
σ
confidence level.