Glossary

A-C

ASNITE

An acronym for "Accreditation System of National Institute of Technology and Evaluation."(New window will open.) One of the accreditation programs by International Accreditation Japan (IA Japan), National Institute of Technology and Evaluation (NITE.)

Conformity assessment of the National Metrology Institutes (NMIs) to international standards (ISO/IEC 17025), is one of the accreditation programs.

Coverage Factor

A coefficient applied to a combined standard uncertainty, to derive an expanded uncertainty.

D-F

Expanded Uncertainty

A measure of uncertainty that defines an interval about the measurement result that may be expected to encompass a large fraction of the distribution of values that could reasonably be attributed to the measurand. (Guide to the expression of uncertainty in measurement, GUM)

G-I

GUM

An acronym for "Guide to the expression of Uncertainty in Measurement." (New window will open.)

ISO/IEC 17025

ISO standards of general requirements for the competence of testing and calibration laboratories.

J-L

KCDB

An acronym for "Key Comparison Database," (New window will open.) that is operated by Bureau International des Poids et Mesures (BIPM). It is a databese related to the CIPM Mutual Recognition Arrangement (CIPM MRA). (New window will open.) The information of international key and supplementary comparisons conducted by International Committee for Weights and Measures�iCIPM�j or Regional Metrology Organizations (RMOs) and internationally recognized Calibration and Measurement Capabilities of National Metorology Institutes.

M-O

P-R

S-V

Uncertainty

Parameter, associated with the result of a measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand. ( Guide to the expression of uncertainty in measurement, GUM)

W-Z