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TEM Asbestos air sample results, NYC BOE, Mar 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 March 24, 2002.
NYC-WTC_000180474Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume /liters): 1960 Lab Group #: 7192 Fitter Type / Filter Area: MCE 385 mm’ Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 9 Area Examined: 0.04496 mm" GRID BOX: Magnification: 20,000 GRID ED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/24/02
Analysis Performed By: MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure Nor\ EDS No (Nonadb F B >=5(J Chrys Amphibole Nonasb | Ambig/ND -No Coord <5u Elements)
-------- 23 z—X” >2 .ziT-z'
Struct = > 0.5pi > 5:1 Aspect Ratio Grid acceptance: a/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped 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 >5p 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 apad Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467048 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180474
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NYC-WTC_000180474Source: 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 data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site.
8 shared non-person entities · 1 shared topics · similarity 0.995
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Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education facility.
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Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 28, 2002.
8 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000180456
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site.
8 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000180748
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site.
8 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗Filed elsewhere
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