5
Determine Second Standard
Daily Verification- Step Two
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If your primary verification
standard read within
+/- 0.01 of the given value
for that standard, identify
the range of water activity
you plan to test and whether
it is above or below your
primary standard.
Choose a second verification
standard that borders the range
of water activity you plan to
test. For example, if you plan to
test for water activity readings
ranging between 0.71 and
0.62 you should use the 0.760
as your primary standard and
the 0.500 as your secondary
standard.
Conduct a two-point
performance verification daily.
If you need guidance on which
two standards to use, please
contact us:
Email: support@aqualab.com
Phone: 509-332-5601
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