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Glossary
ABS
Acrylonitrile butadiene styrene is a common
thermoplastic.
ABS/LAS
Alkyl benzene sulfonate / Linear alkyl
sulfonate (detergents)
Absorbance
Absorption of light is a typical phenomenon
of interaction between electromagnetic
radiation and matter. When a light beam
crosses a substance, some of the radiation
may be absorbed by atoms, molecules or
crystal lattices.
Accuracy
The accuracy of an analytical procedure
expresses the closeness of agreement
between the value which is accepted either
as a conventional true value or an accepted
reference value and the value found.
AISI
The American Iron and Steel Institute.
Alkalinity
The quantitative capacity of a water sample
to neutralize an acid to a set pH.
Analytical Procedure
The analytical procedure refers to the way of
performing the analysis. This may include but
is not limited to: the sample, the reference
standard and the reagents preparations,
use of the apparatus, generation of the
calibration curve, use of the formula for the
calculation, etc.
Amphel®
Hanna AmpHel electrodes incorporate a
miniaturized amplifier which resolves most of
the problems associated with high impedance
signals. The amplifier circuitry is located right
on top of the electrode and is completely
sealed. As a result, a strong, low impedance
signal is emitted and ordinary connectors
with long unshielded cables can be used. This
breakthrough technology provides a stable
signal for industrial monitoring as well as a
major saving in low noise coaxial cable costs. In
some cases, the need for a transmitter is also
eliminated,resulting infurthercostreductions.
AOAC
Association of Official Analytical Chemists
ASBC
American Society of Brewing Chemists.
ASTM
American Society for Testing and Materials.
ATC
Automatically Temperature Compensation.
Auto-feedback
With a Hanna magnetic stirrer incorporating
auto-feedback, any change in viscosity
or volume of the solution is automatically
compensated for to keep the speed constant.
Backlight
A formof illuminationused inLCD’s; backlights
illuminate the LCD from the side or back of the
display panel.
Backpack Lab®
BackpackLabfromHannaareportablestudent
laboratories that include a collection of well
constructed lessons and activities, testing
instruments, and kits for use by educators and
students of environmental science.
°Baumé
The Baumé scale is used to measure density
of various liquids. Notated variously as
degrees Baume, degrees Baumé, B°, Be°, Bé,
Baume.
BEPS
Battery Error Prevention System. Alerts the
user in the event that low battery power
could adversely affect readings
BNC Connector
Bayonet Neill-Concelman connector is a
common type of radio-frequency connector
used for the coaxial cable which connects
various devices; usually is applied for
frequencies below 3 GHz.
17
Glossary
17.6
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