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7. Repeat step 6 until
8. Record the value.
the lowest value is
Put an orientation mark
shown on the display.
on the marking band
near the top of the
sample cell.
13. Do steps 9–12
again as necessary to
match the other sample
cells prepared in steps
1–4.
9. Put the second
10. Remove the
sample cell in the
sample cell, turn it
1
sample cell holder.
about
Close the cover.
put it in the sample cell
holder again. Close the
Record the value when
cover.
stable.
Record the value when
stable.
11. Repeat step 10
until the value matches
/
of a turn and
the first sample cell
8
value within ±0.005
NTU.
Note: Match sample
cells to within ±0.002
absorbance units when
indexing sample cells in
the Absorbance mode
for use with
transmittance or
absorbance
measurements.
12. Put an orientation
mark on the marking
band near the top of the
sample cell where the
lowest value is shown.
English 23
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