Glossary, A – b, C – e – Vaisala vLog 4.5 User Manual
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Glossary
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21 CFR Part 11 (vLog VL)
A Food and Drug Administration (FDA) rule relating to the use of Electronic
Records and Electronic Signatures. The FDA’s view is that the risks of
falsification, misinterpretation, and change without leaving evidence are
higher with electronic records than paper records, and, consequently, 21 CFR
Part 11 has been developed to provide adequate control over these risks.
A– B
Ambient temperature
The average or mean temperature of the surrounding air that comes in
contact with the equipment or instrument.
Axis
A line that borders one side of the graph area, providing a frame of reference
for measurement or comparison. In vLog software, measurement values are
plotted on the vertical Y-axis while date and time values are plotted on the
horizontal X-axis.
C–E
Calibrate
To compare and correlate readings against a standard measurement
Calibration certificate
Documented evidence that a product has been calibrated against a standard
measurement reference and that it falls within the specified requirements
CFR
The acronym for Code of Federal Regulations; this is a book of federal rules
and regulations that are followed by government agencies