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3) The   centrifuge   of “Elecon”  LSSTC-R10-01  type  (the

                  centrifuge  of  “Элекон”  ЦЛМН-Р10-01  type)  (fig.  8.3)  (this
                  centrifuge  is  the laboratory table centrifuge  with  a rotor  for 10 test
                  tubes    (the    frequencies   of   rotor    rotation   are    1000;  1500;  2000;

                  2700 revolutions/minute)) and others.





















                 Figure  8.3  –  The   centrifuge   of    “Elecon”  LSSTC-R10-01  type  (the
                 centrifuge  of  “Элекон” ЦЛМН-Р10-01 type)

                               8.3 Equipment, devices and materials (reagents)


                        Centrifuge (with a hand or electric drive), graduated test  tubes for
                  centrifuges, oil-water emulsion.

                                    8.4 Procedure and results of observation

                        8.4.1 Pour emulsion, for example, hydrophobic emulsion of   “oil-




                  water” type into five graduated test tubes (fig. 8.4).
                        8.4.2 At   proof   emulsions   dilute  them  by   50 %  of  petrol.
                  Covering  the  test  tubes  by  a  thumb  shake  them  strongly  for  3 –

                  5 minutes.
                        8.4.3 Fasten into the nests of  the centrifuge four of test tubes and
                  the  fifth one is left as the control test tube by the end of experiment.
                        8.4.4 Close   the   protective   casing    by  the  cover  and put  the

                  centrifuge into operation.
                        8.4.5 After  3  minutes  of  centrifuge operation  take   out   the   test
                  tubes and mark the level of  the settled water (water and mud).

                        8.4.6 Repeat this operation  until  the  destruction  of  emulsion
                  reaches the stage when the water and mud level stops increasing.
                        8.4.7 Put the results of  the observations into table 8.1.



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