Before Analysis
Units of Measurement
Fluoride concentration can be measured in units of moles per
liter, parts per million, or any convenient concentration unit
(see
Table 1
).
Table 1
Concentration Unit Conversion Factors
Moles/Liter
ppm F-
10
-1
1900
10
-2
190
10
-3
19
10
-4
1.9
Sample Requirements
The epoxy electrode body Orion 94-09 and Orion 96-09 are
resistant to attack by inorganic solutions. The electrode may be
used intermittently in solutions containing methanol benzene or
acetone. Consult Thermo’s Technical Service Chemists for
information on using the electrode in specific applications.
Samples and standards should be at the same temperature.
Temperature must be less than 100 °C.
7
Summary of Contents for 96-09
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