
16
AL400T-WL_2a 07/2011
2.3.1 Perform turbidity measurement
Accurate turbidity measurements depend on good, consistent measurement techniques.
This includes working with clean sample vials in good condition and removing air bubbles.
Samples should be measured immediately to prevent changes in sample characteristics due
to temperature shifts and settling.
Instrument operation:
Take a representative sample in a clean container
.
Rinse the vial with approximately 10 mL of the sample
(2/3 of cuvette volume), capping the cuvette with the
black light shield (cuvette top) and inverting several times.
Discard the used sample and repeat the rinsing procedure
two more times.
Fill a clean and dry vial with the sample up to the mark.
Cap the vial
.
Take care to handle the vial by the top. Wipe the vial with
the supplied cleaning tissue to remove waterdrops and
finger prints
.
Switch on the instrument
.
ON
OFF
Содержание AL400T-WL
Страница 1: ...GB Instruction Manual Turbidimeter AL400T WL...
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Страница 25: ...25 AL400T WL_2a 07 2011 Part 3 Enclosure...
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