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TEM Asbestos air sample results, NYC BOE, Feb 2002
Machine-extracted title · confidence 95%Laboratory report documenting transmission electron microscopy analysis of an air sample collected by the NYC Board of Education on February 17, 2002.
NYC-WTC_000175931Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1836 Lab Group #: 6707 Filter Type / FUter Area: MCE 385 mm= Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 03 Area Examined: 0.04496 mm^ GRID BOX: Magnification: £0 000 GRID ED : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/17/02
Analysis Performed Bv: ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or 7 EDS No >=05 p (Nonadb F B C M Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)
1
Struct = >0.5p >5:1 Aspect Ratio Grid‘acceptance: 7= Positive diffraction pattern properties conforming to "50% undissolved filter, oveilap^d or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5tJ ■7= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES ’’ Amphibole F = Single Fiber Amosite B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos Tremolite M = Matrix X Non-Identified Actinolite NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO343375O SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175931
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NYC-WTC_000175931Source: 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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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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Laboratory report documenting transmission electron microscopy analysis of an air sample collected by the NYC Board of Education on February 17, 2002.
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Laboratory analysis record for TEM asbestos air sampling conducted at NYC Board of Education on January 25, 2002.
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Similarity score 0.999 (not a probability)
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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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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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