Hach BODTrak, Instrument Manual, Page: 33 / 63

22
CAUTION
Lithium Hydroxide is strongly alkaline and irritating to the skin and
eyes. Practice safe laboratory techniques.
PRECAUÇÃO
O hidróxido de lítio é fortemente alcalino, caústico e irrita a pele e os
olhos. Use praticas seguras de laboratorio.
PRECAUCION
El hidróxido de litio es fuertemente alcalino, cáustico e irrita la piel y
los ojos. Favor observar prácticas de laboratorio apropiadas.
PRUDENCE
L’hydrate de lithium est fortement alcalin, caustique, irritant pour la
peau et les yeux. Suivre les techniques de laboratoire propres.
VORSICHT
Lithiumhydrat ist eine starke Lauge, ätzt und irritiert die Haut und die
Augen. Bitte sichere und korrekte Labortechniken beachten.
7.
Using the funnel, add
the contents of one
Lithium Hydroxide
Powder Pillow to each
seal cup. Do not allow
lithium hydroxide
particles to fall into the
sample. If this occurs,
discard the sample and
prepare a fresh one.
8.
Place the bottles on
the chassis of the
BODTrak. Connect the
appropriate tube to the
sample bottle and
firmly tighten the cap.
Each tube is tagged
with the channel
number, and the
channel number setup
will be reflected on the
control panel.
9.
Place the instrument
in the incubator.
Note: The American Public
Health Association
(APHA) recommends a
solution incubation
temperature of 20 ± 1 °C
(68 ± 1 °F) for the BOD
test. Adjust your incubator
to the appropriate
temperature setting for
each sample volume. This
temperature value varies
with incubator circulation.
BODTrak Test Procedure,
continued
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