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TEM Asbestos air sample results, NYC BOE, Dec 2001
Machine-extracted title · confidence 95%Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site.
NYC-WTC_000180688Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NY'C BOE Volume /liters): 1928 Lab Group #: 6052 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 04 Area Examined: 0.04496 mrn= GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/6/01
Analysis Performed By: MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Stnjcture N or EDS i No (Nonadb F B C M >=06 p >=5|J Chrys Amphibole Nonasb Ambig/ND No Coord .. <5.p - Elements)
___ Struct = > 0.5p -> 5:1 Aspect Ratio Grid acceptance: n'= 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 >5u •/= EDS spectrum conforming to laboratory C M holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES^ Amphibole F = Single Fiber Amosite ; B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous Anthophyllite i C = Cluster (>3 Intersections) Non-.Asbestos Tremolite ! M = Matrix Non-Identified Actinolite NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003 46'73'7 6 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180688
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NYC-WTC_000180688Source: NYC Law Department, mirrored locally
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Laboratory record documenting transmission electron microscopy analysis of an air sample collected by the NYC Board of Education.
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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 on February 2, 2002.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000181467
Laboratory report documenting transmission electron microscopy analysis of an air sample collected by the NYC Board of Education on March 14, 2002.
Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000180877
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on February 2, 2002.
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000181585
Technical data sheet recording laboratory parameters and microscopy details for the eleventh air sample analyzed on March 21, 2002.
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