User manual

19
9.
Water in the tubes will be frozen fully within 1-3 days,
depending on different conditions (fig. 31 )
10.
Put one layer of ice-packs (filled with water to their
marked level) and arrange them neatly and properly to
cover the bottom of the ILR (fig. 32)
11.
When all the water in the tubes have frozen (fig. 31)
and the ILR is maintaining a constant temperature
around =18° to =20°C, for several hours, transfer the
vaccines to be preserved in frozen condition, to the
ILR for preservation.
Ice packs for freezing may also be stored inside in a
systematic way. The ILR can freeze about 15 ice
packs in a day. It is advisable not to put fresh ice packs
of more than the above number, at a time, - else,
cabinet temperature may be higher than required.
5. TO USE A FREEZER
Fig. 31.
Fig. 32.