Calibration System Manual - Agilent Technologies

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EMG Quality
Calibration System Manual Doc # epsg1024153
Revision No: 42 Page 6 of 48
Document URL: http://sharedoc.collaboration.agilent.com/sites/EMG-
Wide/SD/ISO/ISO%2017025/EMG_CSM_epsg1024153.pdf
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3.0 Definitions
This document uses the definitions of International Vocabulary of Metrology (ISO/IEC Guide
99:2007), ISO/IEC 17025:2005(E), ANSI/NCSL Z540.1-1994 (R2002) and ANSI/NCSL
Z540.3-2006, as well as other terms applied to our calibration activities described below.
Instruments
Measuring and Test Equipment (M&TE) – This comprises all of the measuring
instruments, measurement standards, reference materials, and auxiliary apparatus that are
necessary to perform a measurement. This term includes measuring equipment used in the
course of testing and inspection, as well as, that used in calibration.
Measurement Standard – A material measure, measuring instrument, reference material or
system intended to define, realize, conserve or reproduce a unit or one or more known values
of a quantity to serve as a reference. Items used for measuring standards generally fall into
one of the four following categories:
� Primary - A standard, which has the highest metrological qualities in a specified field.
This standard is generally compared directly to national standards.
� Reference - A standard, generally in the highest order in a calibration system, which
establishes the basic accuracy values for that system. A reference standard is used to link
measurement traceability to an external laboratory.
� Transfer - Are designated measuring and test equipment used in a calibration system as
a medium for transferring the basic values of reference standards to lower echelon
transfer standards or measuring and test equipment. In some cases a transfer standard
may be used as a working standard.
� Working Standard - A material, measuring instrument, reference material or system
intended to define, realize, conserve or reproduce a unit or one or more known values of
a quantity.
Measuring Instrument – A device intended to make a measurement, alone or in conjunction
with, supplementary equipment. Furthermore, all products that meet the following criteria are
considered to be a measuring instrument:
The user of any printed copy of this controlled document is responsible for verifying it is the correct version prior to use.
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