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TEM Asbestos air sample results, NYC BOE, Dec 2001
Machine-extracted title · confidence 95%Technical data sheet recording transmission electron microscopy findings for an air sample analyzed on December 8, 2001 for the New York City Board of Education.
NYC-WTC_000184084Page image
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NYC 9/11 Public Portal Document
TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1952 Lab Group #: 6064 Filter Type / Filter Area: MCE 385 Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 9 Area Examined: 0.04496
GRID BOX: Magnification: 20,000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/8/01
Analysis Performed By : MARK PEYSAKHOV
GC. Structure Structure Type Length ID of Structure Nor N EDS No (Nonadb F B C M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5 pi
45 a
Struct = > O.Sp > 5,1 Aspect Ratio Grid acceptance: 9 = Positive diffraction pattern properties conforming to <50% undissalved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M j >5U 9= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile : AMPHIBOLES ; Amphibole F = Single Fiber Amosite E = Bundle (<3 fibers <1 fiber diamete' apart Crocidolite Ambiguous- C = Cluster (>3 Intersections) Anthophyllite j Non-Asbestos T remolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected -__ I___
CITy_21MC100_003104613
NYC-WTC_000184084
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NYC-WTC_000184084Source: NYC Law Department, mirrored locally
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Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site.
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