Page 185 - Gas Adsorption Equilibria
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3. Gravimetry                                                    171


           6.       LIST OF SYMBOLS AND ABBREVIATIONS

              A list of most symbols and abbreviations used in this Chapter is given.

                             Nm         moment of buoyancy force at  sorbent  site
                                                and ballast  or tare site
                                        respectively

                             N          weight of the empty  suspension inside the
                                        adsorption vessel in vacuum

                             N          weight of  the  suspension inside the
                                        adsorption vessel  bearing a  ballast  or  tare
                                             in vacuum

                             N          weight of  the  suspension  inside the
                                        adsorption  vessel  bearing a  ballast or  tare
                                             in sorptive gas atmosphere (f)


                             N          weight of  the  suspension  inside the
                                        adsorption vessel  loaded with sorbent mass
                                            in vacuum

                             N          weight of  magnetic  suspension  floating
                                        freely in the sorptive gas or fluid (f)

           g = 9.81                     gravity constant of the earth


                             m          length of  beams of  a  microbalance  at
                                        sorbent site       or  ballast or  tare  site
                                               of a microbalance

                             Nm         mechanical  moment of  electromagnetic
                                        forces equilibrating the empty balance, i. e.
                                        without sorbent mass  and ballast or tare  in
                                        vacuum

                             Nm         mechanical  moment of electromagnetic
                                        forces equilibrating the  empty balance in a
                                        sorptive gas atmosphere
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