Definition Calibration vs. Verification - A Good List of Definitions

Marc

Hunkered Down for the Duration
Staff member
Admin
#1
Subject: Calibration vs verification RE17
Date: Fri, 12 Nov 1999 13:53:11 -0500 (EST)
From: Greg Gogates
Subject: Re: Calibration vs verification

In a message dated 11/10/99 12:08:20 PM Pacific Standard Time,

>After the interesting and stimulating debate recently around the
understanding of calibration, I thought I would try my luck with requesting
viewpoints regarding the difference between calibration and verification.
This topic was only briefly mentioned during the calibration debate.
>
>I have a calibration background and therefore tend to treat calibration as
the measurement process whereby the result is a known value of some
parameter whereas verification is usually comparing that known value
against some specification/perfomance limit to check compliance.
>
>I am led to believe however that this terminology has a very different
meaning in chemical and other test laboratories where it would seem
verification is the process by which the performance of an analysis/test
system can be checked for satisfactory performance before testing a sample.
>
>I would be keen to hear from the group an all possible interpretations and
meanings of these terms. I am due to present a paper at a forthcoming
metrology calibration and testing workshop early in 2000 and wish to avoid
too much "calibration" bias.
>
>Kind Regards
>Eddie
> >>
Eddie,

The following is an official list of definitions. It may be of some help in your talk. It seems to me there is no clear distinction among many of the terms. For example, testing, and perhaps calibration, appear to be subsets of inspection.

Ralph

measurement uncertainty - parameter, associated with the result of a measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand . (International Vocabulary of Basic and General Terms in Metrology)

calibration - a set of operations that establish, under specified conditions, the relationship between values of quantities indicated by a measuring instrument or measuring system or values represented by a material measure or a reference material, and the corresponding values realized by the standard.

NOTES

1 The result of a calibration permits either the assignment of values or measurands to the indications or the determination of corrections with respect to indications.

2 A calibration may also determine other metrological properties such as the effect of influence quantities.

3 The result of a calibration may be recorded in a document sometimes called a calibration certificate or a calibration report. (International Vocabulary of Basic and General Terms in Metrology)

test - technical operation that consists of the determination of one or more characteristics of a given product, process or service according to a specified procedure. (ISO Guide 2: 1991)

inspection - evaluation for conformity by measuring, observing, testing or gauging the relevant characteristics (ISO/IE /guide 2)

inspection - activity such as measuring, examining, testing or gauging one or more characteristics of an entity and comparing the results with specified requirements in order to establish whether conformity is achieved for each characteristic. (ISO Standard 8402)

certification - procedure by which a third party gives written assurance that a product, process or service conforms to specified requirements. (ISO Standard 8402)

verification - conformation by examination and provision of objective evidence that specified requirements have been fulfilled. (ISO Standard 8402)

validation - confirmation by examination and provision of objective evidence that the particular requirements for a specific intended use are fulfilled. (ISO Standard 8402)
 
Elsmar Forum Sponsor
T

the_seeker

#2
Subject: Calibration vs verification RE17
Date: Fri, 12 Nov 1999 13:53:11 -0500 (EST)
From: Greg Gogates
Subject: Re: Calibration vs verification

In a message dated 11/10/99 12:08:20 PM Pacific Standard Time,

>After the interesting and stimulating debate recently around the
understanding of calibration, I thought I would try my luck with requesting
viewpoints regarding the difference between calibration and verification.
This topic was only briefly mentioned during the calibration debate.
>
>I have a calibration background and therefore tend to treat calibration as
the measurement process whereby the result is a known value of some
parameter whereas verification is usually comparing that known value
against some specification/perfomance limit to check compliance.
>
>I am led to believe however that this terminology has a very different
meaning in chemical and other test laboratories where it would seem
verification is the process by which the performance of an analysis/test
system can be checked for satisfactory performance before testing a sample.
>
>I would be keen to hear from the group an all possible interpretations and
meanings of these terms. I am due to present a paper at a forthcoming
metrology calibration and testing workshop early in 2000 and wish to avoid
too much "calibration" bias.
>
>Kind Regards
>Eddie
> >>
Eddie,

The following is an official list of definitions. It may be of some help in your talk. It seems to me there is no clear distinction among many of the terms. For example, testing, and perhaps calibration, appear to be subsets of inspection.

Ralph

measurement uncertainty - parameter, associated with the result of a measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand . (International Vocabulary of Basic and General Terms in Metrology)

calibration - a set of operations that establish, under specified conditions, the relationship between values of quantities indicated by a measuring instrument or measuring system or values represented by a material measure or a reference material, and the corresponding values realized by the standard.

NOTES

1 The result of a calibration permits either the assignment of values or measurands to the indications or the determination of corrections with respect to indications.

2 A calibration may also determine other metrological properties such as the effect of influence quantities.

3 The result of a calibration may be recorded in a document sometimes called a calibration certificate or a calibration report. (International Vocabulary of Basic and General Terms in Metrology)

test - technical operation that consists of the determination of one or more characteristics of a given product, process or service according to a specified procedure. (ISO Guide 2: 1991)

inspection - evaluation for conformity by measuring, observing, testing or gauging the relevant characteristics (ISO/IE /guide 2)

inspection - activity such as measuring, examining, testing or gauging one or more characteristics of an entity and comparing the results with specified requirements in order to establish whether conformity is achieved for each characteristic. (ISO Standard 8402)

certification - procedure by which a third party gives written assurance that a product, process or service conforms to specified requirements. (ISO Standard 8402)

verification - conformation by examination and provision of objective evidence that specified requirements have been fulfilled. (ISO Standard 8402)

validation - confirmation by examination and provision of objective evidence that the particular requirements for a specific intended use are fulfilled. (ISO Standard 8402)
In my experience, when used in reference to metrology, the terms verification and calibration have the following meanings:
Calibration: A set of activities that return a device to a known state of being calibrated, which is traceable to some reference standard.
Verification: A set of activities that establish IF a device is calibrated, which is traceable to some reference standard.

In the case of verification, the intent is that 'verification' implies nothing was changed on the device. In verification the activity can be considered a type of inspection, since no adjustment is made to the device.

On the other hand, 'calibration' implies that the device was adjusted in some manner to bring it into calibration or closer to the intended state of being 'calibrated'.

I hope these definitions are useful.
 
Thread starter Similar threads Forum Replies Date
T Calibration or Verification -> Cm and Cmk, etc. Definitions, Acronyms, Abbreviations and Interpretations Listed Alphabetically 3
M Calibration or Verification? What terminology to use ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 1
V Calibration certificate verification Qualification and Validation (including 21 CFR Part 11) 3
G Assigning a calibration tolerance - An x-y coordinate machine - Uncertainty as my verification tolerance General Measurement Device and Calibration Topics 4
J Calibration/Verification Records (IATF 16949 7.1.5.2.1) IATF 16949 - Automotive Quality Systems Standard 5
D How to set equipment calibration/verification criteria General Measurement Device and Calibration Topics 1
E IATF 16949 Cl. 7.1.5.2.1 - Calibration and Verification Records Requirements IATF 16949 - Automotive Quality Systems Standard 1
S Calibration and Verification requirement for foreign EASA Part 145 EASA and JAA Aviation Standards and Requirements 7
J IATF 16949 Cl. 7.1.5.2.1 - Gauges (Measuring Jigs) Calibration/Verification Records IATF 16949 - Automotive Quality Systems Standard 6
M Clarification on Calibration/Verification Records 7.1.5.2.1d (IATF 16949) General Measurement Device and Calibration Topics 11
B Calibration/Verification Records - IATF 16949 section 7.1.5.2.1 f) IATF 16949 - Automotive Quality Systems Standard 6
P IATF 16949 Cl. 7.1.5.2.1 "Calibration/Verification Records" Interpretation IATF 16949 - Automotive Quality Systems Standard 12
J Pneumatic & Electrical Torque Tool - Calibration/Verification of 'Power Tools' General Measurement Device and Calibration Topics 2
Q Using Caliper A to verify Caliper B - Verification of Calibration ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 5
K Verification instead of calibration?(ISO 9001:2008) Calibration Frequency (Interval) 10
K "Verification of Calibration" - CMM arm General Measurement Device and Calibration Topics 6
I Verification or calibration Fluke 8508a with 5720a? TUR not 4:1? Measurement Uncertainty (MU) 1
Q Number of Calibration Verification Points - Calipers, height gages, etc General Measurement Device and Calibration Topics 6
A Calibration/Verification of thermo-hygrometer in storage areas ISO 13485:2016 - Medical Device Quality Management Systems 9
G Is this Calibration or Verification ? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 23
D How Working Standard Calibration result use in Verification of Equipment General Measurement Device and Calibration Topics 7
M Calibration Certification Qualification vs. Verification by Uncertified Staff General Measurement Device and Calibration Topics 6
AshleyE Torque Wrench Calibration/Verification General Measurement Device and Calibration Topics 24
G BRC (British Retail Consortium) - Calibration vs. Verification Food Safety - ISO 22000, HACCP (21 CFR 120) 4
G TS-16949 7.6.2 ? Calibration/Verification Records - Assessment of the Impact IATF 16949 - Automotive Quality Systems Standard 5
JodiB Balance Calibration Verification question General Measurement Device and Calibration Topics 9
JodiB Log Book for Analytical Balance Calibration Verification General Measurement Device and Calibration Topics 4
Uriel Alejandro How to Record Evidence for Verification/Calibration of Equipment AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 6
M Establishing Ranges for Weights for Calibration Verification of a Micro-Balance Calibration Frequency (Interval) 1
H Analytical Balance Calibration and Verification General Measurement Device and Calibration Topics 9
D Precision Balance Verification and Calibration Process General Measurement Device and Calibration Topics 3
D Equipment Verification and Calibration Report Standard General Measurement Device and Calibration Topics 9
P Record Retention requirements of Calibration and Verification Service Providers ISO 13485:2016 - Medical Device Quality Management Systems 11
K Calibration and Verification Records - TS 16949 Clause 7.6.2 General Measurement Device and Calibration Topics 8
P Is it compulsory to send new measuring equipment for calibration / verification? Calibration Frequency (Interval) 3
D Calibration vs. Verification and Measurement Device Labeling General Measurement Device and Calibration Topics 10
M Basis used for Calibration or Verification of Measuring Equipment ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 8
D For Reference Only or Calibration/Verification - Tape Measures for cutting bar stock ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 26
M Methods for Verification/Calibration of Video (Optical) Extensometer General Measurement Device and Calibration Topics 2
C Updating our Laboratory Calibration / Verification Procedures IATF 16949 - Automotive Quality Systems Standard 5
R Verification vs. Calibration and what to do with the results of each General Measurement Device and Calibration Topics 3
B Difference between Calibration & Verification and How to calibrate Go/No Go gauge? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 4
S Audit and Calibration question - does verification alone meet the requirements? General Auditing Discussions 5
D Calibration vs. Verification - Can we calibrate dial indicators in-house? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 3
P Internal Calibration or Verification - Personnel Requirements IATF 16949 - Automotive Quality Systems Standard 3
S Verification of calibration certificate Miscellaneous Environmental Standards and EMS Related Discussions 1
R Calibration (Verification) of RF cables General Measurement Device and Calibration Topics 2
M Telescoping Gage - Calibration or Verification General Measurement Device and Calibration Topics 5
L Difference between Calibration, Verification and Adjust (Adjustment) General Measurement Device and Calibration Topics 6
C Verification vs. Calibration of Dial Weight Dynamometer General Measurement Device and Calibration Topics 4

Similar threads

Top Bottom