Method and apparatus for quantitatively and qualitatively determ

Details Method and apparatus for quantitatively and qualitatively determ Method and apparatus for quantitatively and qualitatively determ

1976-09-30

1978-04-18

Ruehl, Charles A.

Measuring and testing

Sheet, woven fabric or fiber

G01N 500

Patent

active

040844331

ABSTRACT:
Method and apparatus for quantitatively and qualitatively determining the dust content of fibrous material, in which a representative sample of the fibrous material is opened to obtain individual fibers and release the dust contained therein. The individual fibers and fine dust are separated by a combination of gravity separation and air flow. Coarse dust is separated and collected incidental to the opening process. The dust quantity and quality are determined on a weight basis.

REFERENCES:
patent: 2324126 (1943-07-01), Anway
patent: 2910731 (1959-11-01), Moore et al.
patent: 2986778 (1961-06-01), Goodwin et al.
patent: 3286306 (1966-11-01), Brown
patent: 3545281 (1970-12-01), Johnston
patent: 3987517 (1976-10-01), Bonalumi

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