Aqua Lab PRE Schnellstart-Handbuch - Seite 6

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Daily Verification- Step Two

Determine Second Standard

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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

Phone: 509-332-5601