Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1991-02-11
1992-02-04
Lesmes, George F.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428 40, 428195, 428207, B32B 712, B32B 1504
Patent
active
050859374
ABSTRACT:
A tape for sampling a surface to determine the amount of particulate matter which has settled thereon. The tape is constructed of a polymeric film backing and a smooth, pigmented adhesive coating. A grid pattern is printed directly on the outer surface of the adhesive coating. Alternatively, the adhesive may be transparent, the film backing pigmented, and the grid pattern printed on the film backing. In this manner, the tape may be applied directly to the surface to be sampled, and particulates will adhere to the outer surface of the adhesive coating. The particulate level may then be determined according to the average number of particulates in a given square formed by the grid pattern.
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ASTM Standard No. F 24-65 (reapproved 1983) Operating and Maintenance Instructions (rev. 1/1982).
Handbook on Aerosols (edited by R. Dennis, 1976), pp. 95-96.
Air Pollution (edited by A. Stern, 1968), vol. II, pp. 250-251.
Methods of Air Sampling and Analysis (edited by M. Katz, latest copyright 1977), pp. 585-587 and 624-629.
Griswold Gary L.
Kirn Walter N.
Lesmes George F.
Minnesota Mining and Manufacturing Company
Musgrove Jack V.
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