Pump
Calibration Standard For Titratable Acidity In Wine Mini Titrator -
HI-84102-55
The
HI-84102 total titratable acidity mini titrator incorporates a peristaltic
pump dosing system for the accurate delivery of a titrant. The HI-84102-55
is a pump calibration standard that is used to calibrate the dosing
system. A calibrated dosing pump allows for the accurate determination of
the amount of titrant used when performing a titration. The amount of
volume dosed along with the concentration of the titrant is used by the
pre-programmed formula within the HI-84102 in determining the exact
titratable acidity. The pump calibration procedure should be performed
anytime the titrant or pH electrode is replaced. Routine calibration is
recommended to ensure the highest of accuracy when performing a titration.
- Pre-measured
solution
- Clearly
marked expiration date and lot number
- Air
tight bottle with tamper-proof seal to ensure quality
The
determination of total acids in wine is made according to a neutralization
reaction in which the acids found in wine are neutralized by a base. Total
acidity, also called titratable acidity, is the sum of the fixed and
volatile acids. In the United States the total acidity is usually
expressed in terms of tartaric acid, even though the other acids are
measured.
For
precise results it is very important to know the sample volume, titrant
volume, and titrant concentration. As the titrant comes pre-standardized,
it is important to determine the amount of titrant delivered by the dosing
pump. This determination is done by the pump calibration procedure. In
this procedure the analysis of a known volume of a known solution
(HI-84102-55) is titrated with the HI-84102-50 titrant to a specific pH
endpoint that is potentiometrically determined by the HI1048B pH electrode
designed for wine samples. The pump calibration procedure should be
performed anytime the titrant, syringe, tubing or pH electrode is
replaced. It is recommended to do a pump calibration every time a new set
of titrations are to be performed.
The
HI-84102-55 is a 100 mL bottle of pump calibration standard solution.
There is enough calibration standard to perform 30 pump
calibrations.
Brand : Hanna Instruments
