The continuous sonic nozzle procedure

The approach developed by Rouquerol (1972) and Grillet et al. (1977a) involves the following steps [Pg.71]

Steps 1 and 2 (Adsorbent weighed and evacuated) are the same as in the discontinuous manometric procedure. [Pg.71]

Calibration of gas flow rate adsorptive allowed to flow through sonic nozzle into the calibrated volume. Flow rate obtained from slope of p versus t curve. [Pg.71]

Determination of dead space volume by gas expansion into adsoiption bulb and measurement of new pressure another method is to determine the modified slope of the p versus t curve. [Pg.71]

Adsorptive introduced through sonic nozzle, while evacuation continues. [Pg.71]

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