Intended Use and Precautions FlowSorb III
Conventions
This manual uses the symbols shown below to identify notes of importance, cau-
tions, and warnings.
Notes contain pertinent information with reference to the subject matter.
Cautions contain information to help you prevent actions which could
damage the instrument.
Warnings contain information to help you prevent actions which could cause
personal injury.
Intended Use and Precautions
Intended Use
The FlowSorb III is designed to measure rapidly the surface area on the molecu-
lar level of stable, granulated, and powdered materials. Surface area measurement
can be accomplished either by a simplified, single-point procedure or by the more
conventional multipoint BET technique (see Appendix A). The FlowSorb III 2310
is automatic and requires no operator intervention other than preparing, installing,
and removing the sample. The FlowSorb III 2305 is manually operated.
Both models measure with diminishing effectiveness the physical properties of ma-
terials which have appreciable vapor pressures, i.e., materials which slowly evapo-
rate or sublimate. Deposition of recondensed vapors within the instrument will
eventually lead to unsatisfactory performance.
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