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TEM Asbestos Air Sample Data Sheet #19, June 1, 2002
Machine-extracted title · confidence 90%Laboratory data sheet recording parameters and analysis results for air sample number nineteen collected on June 1, 2002.
NYC-WTC_000184539Page image
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OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7925 Filter Type / Filter Area: MCE 385 Lab Sample #: 19 Grid Opening Size: 0.01124 Client Sample #; 19 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/1/02
Analysts Performed By: MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure NorN EDS No (Nonadb F B C M >=05 p >=5p Chrys Amphibole Nonasb AmbigflIO No Coord <5p Elements)
CT
Struct = > 0.5n > 5:1 Aspect Ratio Grid acceptance: A-- Positive diffraction pattern properties conforming to undiss^ed filter, overtopped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate
'/= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B c M >5|J
identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected
CITY_21MC100_003105266
NYC-WTC_000184539
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NYC-WTC_000184539Source: NYC Law Department, mirrored locally
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