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Glossary
Electromagnetic
Compatibility
See page 17.4
Electromagnetic Interferences
(EMI)
See page 17.4
EPA (U.S. EPA)
United States Environmental Protection
Agency
°F
Fahrenheit temperature degree; °F = °C x 9/5
+ 32
FAO
Food and Agriculture Organization
Fast Tracker™—Tag Identification
System
Hanna’s Fact Tracker™—Tag Identification
System simplifies test logging. iButton®s
with a unique ID can be installed at various
sampling sites. When thematching connector
on the meter contacts the location button,
measurements are logged and labeled with
the alphanumeric user-entered location
ID. Location, date, time and measurements
are logged into the meter which can be
transferred to a PC.
FDA
US Food & Drug Administration.
FDA bottle = bottles that meet FDA
Standards.
Filling Solution
Solution containing the anion to which the
reference electrode of the operational pH
cell is reversible, eg. Chloride for Ag-AgCl
electrodes.
FNU
Formazin Nephelometric Unit.
FTU
Formazin Turbidity Unit.
F.S. (or f.s.)
Full scale
Glass Membrane
Hanna utilizes four different types of pH
sensitive glass to cover a vast number of
applications. Our manufacturing processes
are specific for each pH electrode design.
For instance, some electrodes with low
impedance glass are particularly suited at
performing measurements in solutions
with low conductivity or cold solutions. For
industrial grade electrodes, Hanna produces
a specific range of sensitive glass that
guarantees a linear response over a wide
pH range as well as being resistant to
harsh environments.
To optimize a pHmeasurement for a particular
application, the pH glass characteristics
are considered, as well as materials of
construction including reference junctions,
wetted materials and internal seals. Hanna
provides the best materials and performance
for a particular application to ensure reliable
measurements.
GP
General Purpose
HT
High Temperature
LT
Low Temperature
HF
Samples with Fluoride
GLP
Good Laboratory Practice. The phrase
good laboratory practice especially refers
to a Quality System concerned with the
organizational process and the conditions
under
which
non-clinical
health
and
environmental safety studies are planned,
performed, monitored, recorded, archived
and reported.
GP Glass
Hanna’s GP (general purpose) hydrogen
sensitive glass provides the best response
over the entire pH range and can be used for
a wide range of applications. Great results
are obtained with sphere geometry with
diameter of 9.5 mm (0.37’’). This achieves a
systemwith 100M
Ω
, impedance. TheGPglass
is also used on smaller diameter spheres.
17
Glossary
17.10
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