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48
W
hen accurate measurement is not
possible
When accurate measurement is not possible, check the following.
Table 2 Check list
Check item
Solution
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Are the temperatures
of the standard
solution and sample
solution the same?
The standard solution in
calibration and the sample
solution in measurement shall
have almost the same
temperature. Match the
temperature as close as possible
by, for example, using a
thermostatic bath. The
temperature difference may
cause measurement errors.
(
and standard solutions” (page
30))
―
Is the stirring solution
speed appropriate?
It is best to control the stirring
speed so that the stir bar will
rotate 3 or 4 turns per second.
If swirling occurs on the surface,
the stirring speed is too fast.
Reduce the speed to a level
where swirling does not occur.
(
Summary of Contents for 6582S-10C
Page 1: ...Instruction Manual Combination type Potassium Ion Selective Electrode 6582S 10C ELECTRODE...
Page 18: ...8...
Page 52: ...42...
Page 62: ...52...
Page 79: ...69 Specifications External dimensions Unit mm 16 5 O D 18 85 150...