4 Calibration
19
1.
Drain the solution remaining in the top of ampoule to the bottom part.
2.
Make a cut line on the ampoule with a cutter knife, knife or other sharp object.
3.
Break the ampoule.
4.
Pour the contents from the ampoule into a 2 L measuring flask that was cleaned
using zero solution in advance.
5.
Pour the zero solution up to the gauge line of 2 L measuring flask, and dissolve the
solution by shaking thoroughly.
Note
Make sure to use distilled water to dilute the span calibration solution. Do not use the tap water,
groundwater, or industrial water.
Use 2 ampoules of H calibration solution when preparing the span calibration solution of 1.1 Abs
to 2.5 Abs (110 m
-1
to 250 m
-1
). In this case, the concentration value of span calibration solution is
double the concentration value described on the ampoule.
Use 4 ampoules of H calibration solution or 2 ampoules of H II calibration solution when
preparing the span calibration solution of 2.6 Abs to 5.0 Abs (260 m
-1
to 500 m
-1
). In this case, the
concentration value of span calibration solution is 4 times the concentration value described on
the ampoule for H calibration solution, and double the H II calibration solution ampoule.
Drain the solution remaining in the top of the ampoule
as much as possible by flicking with a finger.
Make a cut line all the way around the ampoule.
Hold the ampoule and break off the top part.
Hold the bottom part of ampoule on the table.
Be careful not to spill the solution.
Squeeze the ampoule several times.
Dissolve the solution left in the ampoule
Also dissolve the solution left in the top of
Cleaning bottle
by adding zero solution, and pour into
the measuring flask. (Repeat 2 or 3 times.)
ampoule by adding zero solution, and pour
into the measuring flask.
