“…McBain and Sessions (134) have investigated the sorption of charcoal in a McBain balance apparatus over 19.5 years and found that the silica springs did not stretch in the presence of organic vapors but did stretch in the presence of water vapor. When the springs which had not stretched in chlorinated organic vapors were removed and exposed to air for 1 day, stretching of the order of 1% was observed.…”
“…McBain and Sessions (134) have investigated the sorption of charcoal in a McBain balance apparatus over 19.5 years and found that the silica springs did not stretch in the presence of organic vapors but did stretch in the presence of water vapor. When the springs which had not stretched in chlorinated organic vapors were removed and exposed to air for 1 day, stretching of the order of 1% was observed.…”
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