  Possibilities of a model independent treatment of the data from future
real-time solar neutrino experiments (SNO, Super-Kamiokande and others) are
discussed. It is shown that in the general case of transitions of the initial
solar $\nu_e$'s into $\nu_\mu$ and/or $\nu_\tau$ the total flux of initial 8B
neutrinos and the $\nu_e$ survival probability can be determined directly from
the experimental data. Lower bounds for the probability of transition of solar
$\nu_e$'s into all possible sterile states are derived and expressed through
measurable quantities.
